CVE-2025-62507

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.

CVSS 4.0

7.7CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

7.5% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-25)

CWEs

CWE-787, CWE-20, CWE-121

Published

2025-11-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

Affected

• redis:redis

References

• https://github.com/redis/redis/commit/5f83972188f6e5b1d6f1940218c650a9cbdf7741
• https://github.com/redis/redis/releases/tag/8.2.3
• https://github.com/redis/redis/security/advisories/GHSA-jhjx-x4cf-4vm8

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