CVE-2025-62507 HIGH

CVE-2025-62507: Redis: Bug in XACKDEL may lead to stack overflow and potential RCE

Vendor Redis
Product redis
Weakness CWE-20 · Input validation
Published November 4, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 4, 2025 CVE published
February 26, 2026 Record updated