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Vulnerability record · CVE-2025-46819 · published 3 October 2025

CVE-2025-46819: Redis integer overflow vulnerability

Redis · Redis

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 read out-of-bound data or crash the server and subsequent denial of service. 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 block a script by restricting both the EVAL and FUNCTION command families.

7.1 CVSS 3.1 High EPSS 1.1% · top 36.8% CWE-190 · Integer overflowCWE-125 · Out-of-bounds read
7.1CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

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 read out-of-bound data or crash the server and subsequent denial of service. 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 block a script by restricting both the EVAL and FUNCTION command families.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a0b7bfba Patch
https://github.com/redis/redis/releases/tag/8.2.2 Release Notes
https://github.com/redis/redis/security/advisories/GHSA-4c68-q8q8-3g4f Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-46819-detect-redis-vulnerability Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vulnerability MitigationThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-46819), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.