EvalSVA: Multi-Agent Evaluators for Next-Gen Software Vulnerability Assessment
Xin-Cheng Wen, Jiaxin Ye, Cuiyun Gao, Lianwei Wu, Qing Liao
TL;DR
The paper tackles the challenge of software vulnerability assessment under evolving CVSS standards and limited labeled data. It proposes EvalSVA, a multi-agent framework where several LLMs collaborate via designed communication strategies to assess commit-level SV across CVSS v3.1 base metrics. It also introduces the first multilingual CVSS-based vulnerability-commit dataset (C++, Python, Java) and demonstrates that EvalSVA outperforms single-agent baselines in accuracy and F1, while providing reasoned explanations to aid human experts. The results illustrate human-like reasoning, interpretability, and adaptability to CVSS updates, highlighting practical potential for scalable SV assessment.
Abstract
Software Vulnerability (SV) assessment is a crucial process of determining different aspects of SVs (e.g., attack vectors and scope) for developers to effectively prioritize efforts in vulnerability mitigation. It presents a challenging and laborious process due to the complexity of SVs and the scarcity of labeled data. To mitigate the above challenges, we introduce EvalSVA, a multi-agent evaluators team to autonomously deliberate and evaluate various aspects of SV assessment. Specifically, we propose a multi-agent-based framework to simulate vulnerability assessment strategies in real-world scenarios, which employs multiple Large Language Models (LLMs) into an integrated group to enhance the effectiveness of SV assessment in the limited data. We also design diverse communication strategies to autonomously discuss and assess different aspects of SV. Furthermore, we construct a multi-lingual SV assessment dataset based on the new standard of CVSS, comprising 699, 888, and 1,310 vulnerability-related commits in C++, Python, and Java, respectively. Our experimental results demonstrate that EvalSVA averagely outperforms the 44.12\% accuracy and 43.29\% F1 for SV assessment compared with the previous methods. It shows that EvalSVA offers a human-like process and generates both reason and answer for SV assessment. EvalSVA can also aid human experts in SV assessment, which provides more explanation and details for SV assessment.
