Redis up to 8.2.1 Lua integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Redis up to 8.2.1. Affected by this vulnerability is an unknown functionality of the component Lua Handler. The manipulation results in integer overflow. This vulnerability is cataloged as CVE-2025-46817. The attack must be initiated from a local position. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Redis up to 8.2.1. Affected is an unknown functionality of the component Lua Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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 cause an integer overflow 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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-46817 since 04/30/2025. The exploitability is told to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 269463 (Linux Distros Unpatched Vulnerability : CVE-2025-46817), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.2.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch fc9abc775e308374f667fdf3e723ef4b7eb0e3ca is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (269463) and CERT Bund (WID-SEC-2025-2196). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Trend Micro Apex One
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Redis
  • F5 BIG-IP

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CNA Base Score: 7.0
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269463
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-46817

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Redis 8.2.2
Patch: fc9abc775e308374f667fdf3e723ef4b7eb0e3ca

Timelineinfo

04/30/2025 CVE reserved
10/03/2025 +156 days Advisory disclosed
10/03/2025 +0 days VulDB entry created
01/15/2026 +104 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-m8fj-85cg-7vhp
Status: Confirmed

CVE: CVE-2025-46817 (🔒)
GCVE (CVE): GCVE-0-2025-46817
GCVE (VulDB): GCVE-100-326964
CERT Bund: WID-SEC-2025-2196 - Redis: Mehrere Schwachstellen

Entryinfo

Created: 10/03/2025 21:21
Updated: 01/15/2026 19:50
Changes: 10/03/2025 21:21 (66), 10/06/2025 19:45 (6), 10/08/2025 17:26 (2), 10/09/2025 13:00 (2), 10/30/2025 00:26 (1), 11/12/2025 12:40 (11), 11/15/2025 15:10 (1), 01/15/2026 19:50 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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