CVE-2025-27151 redis-check-aof may lead to stack overflow and potential RCE
A stack-based buffer overflow in redis-check-aof allows attackers to potentially execute arbitrary code via a crafted file path.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-27151?
CVE-2025-27151 is a medium-severity memory corruption vulnerability in redis, published on 29 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2025-27151?
3 open source packages ship an affected version, including redis, keydb and valkey. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
redis Bitnami | From 7.0.0 | 7.2.9, 7.4.4, 8.0.2 |
keydb Bitnami | From 7.0.0 | None |
valkey Bitnami | All versions | 7.2.10, 8.0.5, 8.1.2 |
Linux distribution packages (2)
redis SUSE:Linux Enterprise Module for Server Applications 15 SP6 | All versions | 7.2.4-150600.3.12.1 |
redis openSUSE:Leap 15.6 | All versions | 7.2.4-150600.3.12.1 |
Products include Redis Redis.
How do I fix CVE-2025-27151?
Upgrade redis to a fixed version for your release line: 7.2.9, 7.4.4 or 8.0.2.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-27151 being exploited?
There is no known exploitation of CVE-2025-27151 in the wild and no public exploit code.
Other vulnerabilities in redis
- CVE-2022-0543 Debian-specific Redis Server Lua Sandbox Escape
- CVE-2026-23479 redis-server use-after-free in unblock client flow may allow remote code execution
- CVE-2026-25243 redis-server RESTORE invalid memory access may allow remote code execution
- CVE-2025-62507 Redis: Bug in XACKDEL may lead to stack overflow and potential RCE
- CVE-2025-48367 Redis DoS Vulnerability due to bad connection error handling
Sources
Also known as ALPINE-CVE-2025-27151, AZL-63750, BELL-CVE-2025-27151, BIT-keydb-2025-27151, BIT-redis-2025-27151, BIT-valkey-2025-27151 and 8 more.