Redis up to 8.2.1 Lua integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Redis up to 8.2.1. It has been declared as problematic. This impacts an unknown function of the component Lua Handler. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2025-46819. The attack is restricted to local execution. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Redis up to 8.2.1. This vulnerability affects some unknown processing of the component Lua Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect 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 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.

The advisory is available at github.com. This vulnerability was named CVE-2025-46819 since 04/30/2025. The exploitation appears to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 269460 (Linux Distros Unpatched Vulnerability : CVE-2025-46819), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.2.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (269460) and CERT Bund (WID-SEC-2025-2196). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CNA Base Score: 6.3
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: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269460
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-46819

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Redis 8.2.2

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: github.com
Status: Confirmed

CVE: CVE-2025-46819 (🔒)
GCVE (CVE): GCVE-0-2025-46819
GCVE (VulDB): GCVE-100-326962
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 (62), 10/06/2025 22:17 (6), 10/08/2025 17:26 (2), 10/09/2025 13:00 (2), 10/11/2025 04:13 (11), 10/30/2025 02:47 (1), 11/15/2025 15:10 (1), 01/15/2026 19:50 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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