Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To workaround this issue without patching the redis-server executable is to prevent users from executing XACKDEL operation. This can be done using ACL to restrict XACKDEL command.
Fix
Public exploits 1
- GartonChan/redis-cve-2025-62507 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/redis/redis/commit/5f83972188f6e5b1d6f1940218c650a9cbdf7741 Patch
- https://github.com/redis/redis/security/advisories/GHSA-jhjx-x4cf-4vm8 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.7 · redisNVD modified 2026-10-19 13:10
Affected (CPE criteria) 1
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*