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

> CVE-2025-62507: Redis: Bug in XACKDEL may lead to stack overflow and potential RCE. CVSS 8.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-62507
Last updated: 2026-10-19T13:10:00Z

- Published: 2025-11-04 21:24 UTC · Updated: 2026-10-19 13:10 UTC · Assigner: GitHub\_M
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 7.5%, 94th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-121, CWE-20

## Description

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.

## Affected vendors and products

- redis: redis

## Tracked companies

- [Redis](https://rewindex.com/company/redis.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-62507)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-62507)
- [https://github.com/redis/redis/commit/5f83972188f6e5b1d6f1940218c650a9cbdf7741](https://github.com/redis/redis/commit/5f83972188f6e5b1d6f1940218c650a9cbdf7741)
- [https://github.com/redis/redis/releases/tag/8.2.3](https://github.com/redis/redis/releases/tag/8.2.3)
- [https://github.com/redis/redis/security/advisories/GHSA-jhjx-x4cf-4vm8](https://github.com/redis/redis/security/advisories/GHSA-jhjx-x4cf-4vm8)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-62507 · Markdown: https://rewindex.com/cve/CVE-2025-62507.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-62507 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:51.422Z