CVE-2026-23479

HIGH EPSS 56.9%
Published May 5, 20261mo ago · Modified Jun 17, 20261w ago
7.7 CVSS 4.0
High
Find Similar
Published May 5, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.

CVSS Details

Base Score
7.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
56.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
redisredis*≥7.2.0  –  <8.6.3

References 2

  • github.com https://github.com/redis/redis/releases/tag/8.6.3
    Release Notes
  • github.com https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.