Redis allows out of bounds writes in hyperloglog commands leading to RCE
46Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7epss 4.0%
from disclosure to weapon0 days
Published on NVDJul 7
1st PoCJul 6
exploitation probability
4.0%top 11% of all CVEs
observed exploitation
nono source reports it
4 public exploit(s)
Redis is an open source, in-memory database that persists on disk. From 2.8 to before 8.0.3, 7.4.5, 7.2.10, and 6.2.19, an authenticated user may use a specially crafted string to trigger a stack/heap out of bounds write on hyperloglog operations, potentially leading to remote code execution. The bug likely affects all Redis versions with hyperloglog operations implemented. This vulnerability is fixed in 8.0.3, 7.4.5, 7.2.10, and 6.2.19. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing hyperloglog operations. This can be done using ACL to restrict HLL commands.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
redis · redispublic PoCs found — 4
cve_referencewww.exploit-db.com/exploits/52477unverifiedgithubgithub.com/leesh3288/CVE-2025-32023★ 216githubgithub.com/LordBheem/CVE-2025-32023★ 0githubgithub.com/44528zja/Blackash-CVE-2025-32023★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/redis/redis/commit/50188747cbfe43528d2719399a2a3c9599169445https://github.com/redis/redis/releases/tag/6.2.19https://github.com/redis/redis/releases/tag/7.2.10https://github.com/redis/redis/releases/tag/7.4.5https://github.com/redis/redis/releases/tag/8.0.3https://github.com/redis/redis/security/advisories/GHSA-rp2m-q4j6-gr43https://www.exploit-db.com/exploits/52477