# ysoserial alternatives and competitors (2026) The closest ysoserial alternatives are [COGICEO Pentests](https://cybersectools.com/tools/cogiceo-pentests), [VinCSS Penetration Testing](https://cybersectools.com/tools/vincss-penetration-testing) and [RunSybil](https://cybersectools.com/tools/runsybil). Picking a ysoserial alternative comes down to fit: Penetration Testing coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it. 43 alternatives. Closest matches: COGICEO Pentests, VinCSS Penetration Testing, RunSybil. ## The product [ysoserial](https://cybersectools.com/tools/ysoserial) A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization. Category: [Offensive Security](https://cybersectools.com/categories/offensive-security-testing) · Pricing model: Free ## ysoserial alternatives and competitors ysoserial is a free [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) solution. The closest matches by shared tags and NIST CSF 2.0 coverage are [COGICEO Pentests](https://cybersectools.com/tools/cogiceo-pentests), [VinCSS Penetration Testing](https://cybersectools.com/tools/vincss-penetration-testing), [RunSybil](https://cybersectools.com/tools/runsybil), [Novee AI Pentesting](https://cybersectools.com/tools/novee-ai-pentesting), and [Tenzai](https://cybersectools.com/tools/tenzai). All 43 alternatives on this page are ranked the same way. Want a free option? See [free and open source offensive security solutions](https://cybersectools.com/free), plus free picks in other categories. ## The closest ysoserial alternatives These 8 solutions overlap most with ysoserial. Each one says what the product does and, when the overlap is big enough, which capabilities it shares. ### 1. [COGICEO Pentests](https://cybersectools.com/tools/cogiceo-pentests) Penetration testing service by French firm COGICEO to find and fix IT security [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 5 listed. See them on the [COGICEO Pentests page](https://cybersectools.com/tools/cogiceo-pentests#features). [COGICEO Pentests alternatives](https://cybersectools.com/alternatives/cogiceo-pentests) · [ysoserial vs COGICEO Pentests](https://cybersectools.com/compare/cogiceo-pentests-vs-ysoserial) ### 2. [VinCSS Penetration Testing](https://cybersectools.com/tools/vincss-penetration-testing) VinCSS Penetration Testing is a manual security assessment service for application systems, including IoT/SCADA, automotive, devices, and mobile operating systems. The service evaluates the exploitability of vulnerabilities in a target system through expert-led testing, with partial support from automated tools, to determine real-world risk rather than relying solely on scanning. Testing is offered in three modes: - Black Box: testing performed without internal system information - Gray Box: testing performed with partial internal information such as architecture and API documentation - White Box: testing performed with full access to source code and system documentation The engagement process includes scope definition, information handover (for gray/white box), test execution, reporting, and post-remediation verification. Reports classify and rate identified issues based on technical and business impact criteria, include exploitation evidence, reproduction scripts, and remediation recommendations. VinCSS also provides consulting support after the report is delivered, working with clients to verify remediation status until issues are resolved, and issuing a confirmation report once remediation is complete. Manual penetration testing service for applications, IoT/SCADA, and other systems [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 8 listed. See them on the [VinCSS Penetration Testing page](https://cybersectools.com/tools/vincss-penetration-testing#features). [VinCSS Penetration Testing alternatives](https://cybersectools.com/alternatives/vincss-penetration-testing) · [ysoserial vs VinCSS Penetration Testing](https://cybersectools.com/compare/vincss-penetration-testing-vs-ysoserial) ### 3. [RunSybil](https://cybersectools.com/tools/runsybil) AI-driven continuous attack surface assessment and validation platform. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 10 listed. See them on the [RunSybil page](https://cybersectools.com/tools/runsybil#features). [RunSybil alternatives](https://cybersectools.com/alternatives/runsybil) · [ysoserial vs RunSybil](https://cybersectools.com/compare/runsybil-vs-ysoserial) ### 4. [Novee AI Pentesting](https://cybersectools.com/tools/novee-ai-pentesting) AI-driven continuous penetration testing platform with automated remediation. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 10 listed. See them on the [Novee AI Pentesting page](https://cybersectools.com/tools/novee-ai-pentesting#features). [Novee AI Pentesting alternatives](https://cybersectools.com/alternatives/novee-ai-pentesting) · [ysoserial vs Novee AI Pentesting](https://cybersectools.com/compare/novee-ai-pentesting-vs-ysoserial) ### 5. [Tenzai](https://cybersectools.com/tools/tenzai) Agentic AI platform for continuous, autonomous penetration testing of enterprise apps. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 6 listed. See them on the [Tenzai page](https://cybersectools.com/tools/tenzai#features). [Tenzai alternatives](https://cybersectools.com/alternatives/tenzai) · [ysoserial vs Tenzai](https://cybersectools.com/compare/tenzai-vs-ysoserial) ### 6. [GlitchSecure](https://cybersectools.com/tools/glitchsecure) Continuous DAST and real-time human-verified penetration testing for SaaS. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 8 listed. See them on the [GlitchSecure page](https://cybersectools.com/tools/glitchsecure#features). [GlitchSecure alternatives](https://cybersectools.com/alternatives/glitchsecure) · [ysoserial vs GlitchSecure](https://cybersectools.com/compare/glitchsecure-vs-ysoserial) ### 7. [PT Dephaze](https://cybersectools.com/tools/pt-dephaze) Agentless automated pentest platform for continuous infrastructure security testing. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 10 listed. See them on the [PT Dephaze page](https://cybersectools.com/tools/pt-dephaze#features). [PT Dephaze alternatives](https://cybersectools.com/alternatives/pt-dephaze) · [ysoserial vs PT Dephaze](https://cybersectools.com/compare/pt-dephaze-vs-ysoserial) ### 8. [NetSPI Platform](https://cybersectools.com/tools/netspi-platform) PTaaS platform combining human pentesters with AI for continuous security testing. [Penetration Testing](https://cybersectools.com/categories/pentesting-tools) · Commercial Key features: 10 listed. See them on the [NetSPI Platform page](https://cybersectools.com/tools/netspi-platform#features). [NetSPI Platform alternatives](https://cybersectools.com/alternatives/netspi-platform) · [ysoserial vs NetSPI Platform](https://cybersectools.com/compare/netspi-platform-vs-ysoserial) ## All 43 products like ysoserial The 8 above, plus: - [Tolmo](https://cybersectools.com/tools/tolmo): Autonomous AI agent platform for pentesting, discovery, and remediation. (Commercial) - [APX Labs Arsenal (Cipher & Niro)](https://cybersectools.com/tools/apx-labs-arsenal-cipher-and-niro): AI-driven pentest suite: Cipher tests live apps, Niro secures PRs in CI/CD. (Commercial) - [CodeWall AI-Powered Pentesting](https://cybersectools.com/tools/codewall-ai-powered-pentesting): Autonomous AI agent platform for continuous pentesting with verified exploits. (Commercial) - [Alt Security Autonomous Pentesting Platform](https://cybersectools.com/tools/alt-security-autonomous-pentesting-platform): AI-autonomous pentesting platform for continuous web, API & AI app testing. (Commercial) - [Parameter Pentesting](https://cybersectools.com/tools/parameter-pentesting): Autonomous AI pentest platform delivering audit-grade reports in hours. (Commercial) - [Strike Manual Pentesting Project](https://cybersectools.com/tools/strike-manual-pentesting-project): Human-led manual pentesting service for complex logic and critical asset risks. (Commercial) - [PentOne](https://cybersectools.com/tools/pentone): AI-native VAPT operating system for pentest teams: from scan ingestion to final report. (Commercial) - [Autonomous Penetration Testing Tool](https://cybersectools.com/tools/autonomous-penetration-testing-tool): AI agent-based autonomous pentesting tool for continuous web app vulnerability discovery. (Commercial) - [Bitcrack Penetration Testing & Red Teaming](https://cybersectools.com/tools/bitcrack-penetration-testing-and-red-teaming) (Commercial) - [FalconTech AI Pen Testing Agent](https://cybersectools.com/tools/falcontech-ai-pen-testing-agent) (Commercial) - [HackerHub8 VAPT](https://cybersectools.com/tools/hackerhub8-vapt): Manual and automated VAPT service covering web, API, network, cloud, mobile and wireless (Commercial) - [Haryon Pentest Orchestration Platform](https://cybersectools.com/tools/haryon-pentest-orchestration-platform): Platform for orchestrating and automating penetration testing and attack path management (Commercial) - [JAG Cybersecurity Pentesting / Ethical Hacking](https://cybersectools.com/tools/jag-cybersecurity-pentesting-ethical-hacking): Pentesting and ethical hacking service testing infra, apps, IoT and OT systems (Commercial) - [PentestGenix](https://cybersectools.com/tools/pentestgenix): Pentest management platform for tracking engagements, vulnerabilities (Commercial) - [Redpoint Assessment Services](https://cybersectools.com/tools/redpoint-assessment-services): Manual application security assessments and secure code review services (Commercial) - [ScruteX Agentic Pen Testing](https://cybersectools.com/tools/scrutex-agentic-pen-testing): AI agents that autonomously reason, chain exploits, and adapt like attackers to pen test (Commercial) - [SECWATCH Pietje Precies-Pentest](https://cybersectools.com/tools/secwatch-pietje-precies-pentest): Manual penetration testing service by certified ethical hackers (Commercial) - [Soluciones Seguras Estudios de Vulnerabilidad](https://cybersectools.com/tools/soluciones-seguras-estudios-de-vulnerabilidad): Professional vulnerability assessment and penetration testing service (Commercial) - [Tempest Pentest](https://cybersectools.com/tools/tempest-pentest) (Commercial) - [SecurityBoat TriNetra Agentic Pentest](https://cybersectools.com/tools/securityboat-trinetra-agentic-pentest): AI agent swarm plus human-verified pentesting with sign-off logging and tiered engagements (Commercial) - [v6Protect PtaaS](https://cybersectools.com/tools/v6protect-ptaas): Combines automated vulnerability scanning with expert-led manual penetration testing (Commercial) - [RevBits Penetration Testing Service](https://cybersectools.com/tools/revbits-penetration-testing-service) (Commercial) - [VulBox Security Testing Service](https://cybersectools.com/tools/vulbox-security-testing-service): Intake page for requesting a security testing engagement from VulBox (Commercial) - [Lory by Lorikeet](https://cybersectools.com/tools/lory-by-lorikeet): AI pentester with human countersignature for SOC 2 & ISO 27001 audits. (Commercial) - [XBOW Captcha Bypass Tool](https://cybersectools.com/tools/xbow-captcha-bypass-tool): AI-powered automated penetration testing platform for vulnerability discovery (Commercial) - [Burp Suite Professional](https://cybersectools.com/tools/burp-suite-professional): A web application security testing platform that combines manual and automated testing tools for conducting comprehensive security assessments and penetration testing. (Commercial) - [FireCompass AI-powered Pen Testing](https://cybersectools.com/tools/firecompass-ai-powered-pen-testing): AI-powered automated pen testing & continuous red teaming platform (Commercial) - [ImmuniWeb® On-Demand](https://cybersectools.com/tools/immuniwebr-on-demand): ImmuniWeb® On-Demand is a web application penetration testing platform that combines AI-powered automation with manual security testing to provide comprehensive vulnerability assessments and compliance reporting. (Commercial) - [Cyver Pentest Management Platform](https://cybersectools.com/tools/cyver-pentest-management-platform): Pentest management platform for reporting, project mgmt & client collaboration (Commercial) - [PlexTrac Pentest Reporting](https://cybersectools.com/tools/plextrac-pentest-reporting): Pentest reporting & exposure mgmt platform for vulnerability remediation (Commercial) - [Rapid7 Metasploit](https://cybersectools.com/tools/rapid7-metasploit): Penetration testing software for simulating attacks and validating vulnerabilities (Commercial) - [Synack Sara](https://cybersectools.com/tools/synack-agentic-ai): AI-powered autonomous penetration testing platform with multi-agent system (Commercial) - [Vulnetic Penetration Testing](https://cybersectools.com/tools/vulnetic-penetration-testing): AI-powered automated penetration testing platform for web apps and networks (Commercial) - [AWS Security Agent](https://cybersectools.com/tools/aws-security-agent): AI-powered agent for automated security reviews and penetration testing (Commercial) - [Aikido Attack](https://cybersectools.com/tools/aikido-attack): AI-powered automated penetration testing platform for on-demand security audits (Commercial) ## Alternatives to each of these [COGICEO Pentests alternatives](https://cybersectools.com/alternatives/cogiceo-pentests) · [VinCSS Penetration Testing alternatives](https://cybersectools.com/alternatives/vincss-penetration-testing) · [RunSybil alternatives](https://cybersectools.com/alternatives/runsybil) · [Novee AI Pentesting alternatives](https://cybersectools.com/alternatives/novee-ai-pentesting) · [Tenzai alternatives](https://cybersectools.com/alternatives/tenzai) · [GlitchSecure alternatives](https://cybersectools.com/alternatives/glitchsecure) · [PT Dephaze alternatives](https://cybersectools.com/alternatives/pt-dephaze) · [NetSPI Platform alternatives](https://cybersectools.com/alternatives/netspi-platform) · [Tolmo alternatives](https://cybersectools.com/alternatives/tolmo) · [APX Labs Arsenal (Cipher & Niro) alternatives](https://cybersectools.com/alternatives/apx-labs-arsenal-cipher-and-niro) · [CodeWall AI-Powered Pentesting alternatives](https://cybersectools.com/alternatives/codewall-ai-powered-pentesting) · [Alt Security Autonomous Pentesting Platform alternatives](https://cybersectools.com/alternatives/alt-security-autonomous-pentesting-platform) ## Compare ysoserial with - [ysoserial vs COGICEO Pentests](https://cybersectools.com/compare/cogiceo-pentests-vs-ysoserial) - [ysoserial vs VinCSS Penetration Testing](https://cybersectools.com/compare/vincss-penetration-testing-vs-ysoserial) - [ysoserial vs RunSybil](https://cybersectools.com/compare/runsybil-vs-ysoserial) - [ysoserial vs Novee AI Pentesting](https://cybersectools.com/compare/novee-ai-pentesting-vs-ysoserial) - [ysoserial vs Tenzai](https://cybersectools.com/compare/tenzai-vs-ysoserial) - [ysoserial vs GlitchSecure](https://cybersectools.com/compare/glitchsecure-vs-ysoserial) - [ysoserial vs PT Dephaze](https://cybersectools.com/compare/pt-dephaze-vs-ysoserial) - [ysoserial vs NetSPI Platform](https://cybersectools.com/compare/netspi-platform-vs-ysoserial) ## ysoserial Alternatives FAQ ### What are the closest alternatives to ysoserial? The closest matches to ysoserial by shared tags and NIST CSF 2.0 coverage are COGICEO Pentests, VinCSS Penetration Testing, RunSybil, Novee AI Pentesting, and Tenzai. All of them are Penetration Testing products. ### How many alternatives to ysoserial are available? This page shows 43 alternatives to ysoserial, all in the Penetration Testing category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first. ### Is ysoserial free or commercial? ysoserial is a free Penetration Testing product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free. ### What type of solution is ysoserial? ysoserial is a Penetration Testing product in the Offensive Security category. You can compare it with the 43 other Penetration Testing products on this page. --- Source: https://cybersectools.com/alternatives/ysoserial For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any product or compare page has a Markdown copy too (add .md to its URL). More on ysoserial and its alternatives: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=alternatives-md