onyx --cves cve-2025-21605
CVE-2025-21605
- score
- <0.1
- cvss
- 7.5
- epss
- 0.9%
- published
- 2025-04-23
- kev added
- —
- first seen
Redis versions 2.6 to before 7.4.3 contain a buffer overflow caused by unauthenticated clients causing unlimited output buffer growth, letting attackers exhaust server memory, exploit requires no authentication or weak authentication.
Timeline
How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.
- Published
- Tracked by Onyx
Weaknesses
References 6
- https://github.com/redis/redis/releases/tag/7.4.3
- https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff
- https://github.com/valkey-io/valkey/releases/tag/8.1.1
- https://lists.debian.org/debian-lts-announce/2025/05/msg00014.html
- https://www.vicarius.io/vsociety/posts/cve-2025-21605-detection-script-memory-exhaustion-vulnerability-in-redis-database
- https://www.vicarius.io/vsociety/posts/cve-2025-21605-mitigation-script-memory-exhaustion-vulnerability-in-redis-database