CVE-2025-49844

As of 2026-03-20, CVE-2025-49844 is a CVSS 10 (CRITICAL-severity) vulnerability. EPSS exploitation probability 11.1%. Threadlinqs Intelligence tracks 1 threat exploiting it.

Last updated: 2026-03-20

Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-416

Threats tracking this CVE

• P2Pinfect Kubernetes Compromise — Exposed Redis Enables Persistent GKE Botnet Enrollment with Six-Month Dormancy (CVE-2022-0543, CVE-2025-11953, CVE-2025-49844) — HIGH

References

• https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q
• https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539
• https://github.com/redis/redis/releases/tag/8.2.2

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Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.