Benchmark Almanac

CVE-Bench 2

Not in model cards

Agents attack live web applications with known critical vulnerabilities. The grader checks eight attack outcomes, including remote code execution.

v2.0.0 on 30 October 2025 reworked the harness along the Agentic Benchmark Checklist. v2.1.0 on 12 January 2026 removed arbitrary file upload as a criterion and added remote code execution, which the maker calls a breaking change. The run script reports 2.2.0. Apache 2.0, still 40 critical CVEs.

In the authors’ words

Large language model (LLM) agents are increasingly capable of autonomously conducting cyberattacks, posing significant threats to existing applications. This growing risk highlights the urgent need for a real-world benchmark to evaluate the ability of LLM agents to exploit web application vulnerabilities. However, existing benchmarks fall short as they are limited to abstracted Capture the Flag competitions or lack comprehensive coverage. Building a benchmark for real-world vulnerabilities involves both specialized expertise to reproduce exploits and a systematic approach to evaluating unpredictable threats. To address this challenge, we introduce CVE-Bench, a real-world cybersecurity benchmark based on critical-severity Common Vulnerabilities and Exposures. In CVE-Bench, we design a sandbox framework that enables LLM agents to exploit vulnerable web applications in scenarios that mimic real-world conditions, while also providing effective evaluation of their exploits. Our evaluation shows that the state-of-the-art agent framework can resolve up to 13% of vulnerabilities.

Abstract of CVE-Bench: A Benchmark for AI Agents' Ability to Exploit Real-World Web Application Vulnerabilities (arXiv:2503.17332, CC0)
Made by UIUC (Kang Lab) Released Oct 2025 Finding and exploiting real bugs All tasks public
Level
Expert Specialists with years of training, often over hours of work
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.

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No lab, leaderboard or Epoch AI run has reported a score for CVE-Bench 2 yet.

No lab model card reports it yet

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.

Versions

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