What’s Vulnerable › Vulnerabilities

CVE-2025-27151: redis-check-aof may lead to stack overflow and potential RCE

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-29 · updated 2026-06-17
• Weakness: CWE-20

Description

Redis is an open source, in-memory database that persists on disk. In versions starting from 7.0.0 to before 8.0.2, a stack-based buffer overflow exists in redis-check-aof due to the use of memcpy with strlen(filepath) when copying a user-supplied file path into a fixed-size stack buffer. This allows an attacker to overflow the stack and potentially achieve code execution. This issue has been patched in version 8.0.2.

Affected products

• Redis: from 7.0.0 before 7.2.9; from 7.4.0 before 7.4.4; from 8.0.0 before 8.0.2 — fixed in 7.2.9, 7.4.4, 8.0.2

How to fix

Upgrade to a fixed version: Redis 7.2.9, 7.4.4, 8.0.2. Check the vendor advisory for mitigations.

References

• https://github.com/redis/redis/commit/643b5db235cb82508e72f11c7b4bbfc7dc39be56
• https://github.com/redis/redis/releases/tag/8.0.2
• https://github.com/redis/redis/security/advisories/GHSA-5453-q98w-cmvm

Get alerted when CVE-2025-27151 or the next vulnerability affects your stack