CVE & CISA-KEV Catalog

CVE-2025-49844

CRITICALEPSS 100th pctl

9.9

CVSS v3

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 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.

CWE-416Use After Free

How to fix

Remediation Available

redictDebian

Fixed in:7.3.6+ds-1CVE-2025-49844

redisRocky

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.x86_64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.src::redis:6RHSA-2025:19318

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.src::redis:6RHSA-2025:19399

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

redisRed Hat / RHEL

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.x86_64::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.src::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.src::redis:6RHSA-2025:19318

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6RHSA-2025:19238

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

redis-debuginfoRed Hat / RHEL

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.ppc64le::redis:6RHSA-2025:19239

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.x86_64::redis:6RHSA-2025:19239

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

redis-debuginfoRocky

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.x86_64::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.x86_64::redis:6RHSA-2025:19238

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

redis-debugsourceRocky

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.ppc64le::redis:6RHSA-2025:19239

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.aarch64::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6RHSA-2025:19238

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.x86_64::redis:6RHSA-2025:19238

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

redis-debugsourceRed Hat / RHEL

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.x86_64::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.ppc64le::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

redis-develRed Hat / RHEL

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.s390x::redis:6RHSA-2025:19238

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.x86_64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.ppc64le::redis:6RHSA-2025:19239

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.x86_64::redis:6RHSA-2025:19399

redis-develRocky

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.aarch64::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.ppc64le::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.s390x::redis:6RHSA-2025:19239

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.aarch64::redis:6RHSA-2025:19238

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.ppc64le::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.x86_64::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.x86_64::redis:6RHSA-2025:19318

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.ppc64le::redis:6RHSA-2025:19239

redis-docRed Hat / RHEL

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.noarch::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.noarch::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.noarch::redis:6RHSA-2025:19318

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.noarch::redis:6RHSA-2025:19399

Fixed in:0:7.2.11-1.module+el9.6.0+23552+a3d3d132.noarch::redis:7RHSA-2025:19345

Fixed in:0:6.2.7-1.el9_4.5RHSA-2025:18996

Fixed in:0:6.2.20-1.el9_6RHSA-2025:19237

Fixed in:0:6.2.6-1.el9_0.5RHSA-2025:18997

redis-docRocky

Fixed in:0:6.2.20-1.module+el8.10.0+23551+d4cd15d7.noarch::redis:6RHSA-2025:19238

Fixed in:0:6.0.9-5.module+el8.6.0+23584+001f3496.6.noarch::redis:6RHSA-2025:19239

Fixed in:0:6.0.9-5.module+el8.4.0+23585+fb4eb024.5.noarch::redis:6RHSA-2025:19318

Fixed in:0:6.2.7-1.module+el8.8.0+23580+a818c120.6.noarch::redis:6RHSA-2025:19399

Fixed in:0:6.2.20-1.el9_6RHSA-2025:19237

Fixed in:0:7.2.11-1.module+el9.7.0+23559+d075163a.noarch::redis:7RHSA-2025:20955

Fixed in:0:6.2.6-1.el9_0.5RHSA-2025:18997

Fixed in:0:6.2.7-1.el9_2.5RHSA-2025:19086

valkeyRed Hat / RHEL

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

valkeyRocky

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

valkey-debuginfoRed Hat / RHEL

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

valkey-debuginfoRocky

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

valkey-debugsourceRed Hat / RHEL

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

valkey-debugsourceRocky

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

valkey-develRed Hat / RHEL

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

valkey-develRocky

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-2.el10_1RHSA-2025:21936

Fixed in:0:8.0.6-1.el10_0RHSA-2025:19675

liblua5.1-0Ubuntu

Fixed in:5.1.5-8ubuntu1+esm1USN-8262-1

Fixed in:5.1.5-8.1ubuntu0.20.04.1~esm1USN-8169-1

Fixed in:5.1.5-8.1ubuntu0.22.04.1~esm1USN-8169-1

liblua5.1-0-devUbuntu

Fixed in:5.1.5-8.1ubuntu0.20.04.1~esm1USN-8169-1

Fixed in:5.1.5-8.1ubuntu0.22.04.1~esm1USN-8169-1

liblua5.1-bitop-devUbuntu

Fixed in:1.0.2-5ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:1.0.2-5ubuntu0.22.04.1~esm2USN-8169-1

liblua5.1-bitop0Ubuntu

Fixed in:1.0.2-5ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:1.0.2-5ubuntu0.22.04.1~esm2USN-8169-1

lua-bitopUbuntu

Fixed in:1.0.2-5ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:1.0.2-5ubuntu0.22.04.1~esm2USN-8169-1

lua-bitop-devUbuntu

Fixed in:1.0.2-5ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:1.0.2-5ubuntu0.22.04.1~esm2USN-8169-1

lua-cjsonUbuntu

Fixed in:2.1.0+dfsg-2.1ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:2.1.0+dfsg-2.1ubuntu0.22.04.1~esm2USN-8169-1

lua-cjson-devUbuntu

Fixed in:2.1.0+dfsg-2.1ubuntu0.20.04.1~esm2USN-8169-1

Fixed in:2.1.0+dfsg-2.1ubuntu0.22.04.1~esm2USN-8169-1

lua5.1Ubuntu

Fixed in:5.1.5-8ubuntu1+esm1USN-8262-1

Fixed in:5.1.5-8.1ubuntu0.20.04.1~esm1USN-8169-1

Fixed in:5.1.5-8.1ubuntu0.22.04.1~esm1USN-8169-1

redictUbuntu

Fixed in:7.3.5+ds-1ubuntu0.1USN-7824-2

redict-sentinelUbuntu

Fixed in:7.3.5+ds-1ubuntu0.1USN-7824-2

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

82.29%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Release Notes1

github.com

Other references1

github.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2021-34833	High	7.8	96%	-	-
CVE-2015-0313	Critical	9.8	95%	KEV	Fix

Common questions

How do I fix CVE-2025-49844?

Published advisories record a fix for 39 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-49844 being actively exploited?

Not that we know of. CVE-2025-49844 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 82.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2025-49844?

CVE-2025-49844 has a CVSS v3 base score of 9.9, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-49844 affect?

Published advisories record a fix for redict (Debian), redis (Rocky), redis (Red Hat / RHEL), redis-debuginfo (Red Hat / RHEL), and 35 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2025-49844

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-20.