IsItPatchedInstant security status for any software version
← All products

CVE-2021-31294

MEDIUM severity · CVSS 5.9 · CWE-617
5.9CVSS MEDIUM

Summary

Redis before 6cbea7d allows a replica to cause an assertion failure in a primary server by sending a non-administrative command (specifically, a SET command). NOTE: this was fixed for Redis 6.2.x and 7.x in 2021. Versions before 6.2 were not intended to have safety guarantees related to this.

Impact & exploitability

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%

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

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://github.com/redis/redis/commit/46f4ebbe842620f0976a36741a72482620aa4b48 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC