BaseFortify

Publication date: 2025-11-04

Last updated on: 2025-12-08

Assigner: GitHub, Inc.

Description

Redis is an open source, in-memory database that persists on disk. In versions 8.2.0 and above, a user can run the XACKDEL command with multiple ID's and trigger a stack buffer overflow, which may potentially lead to remote code execution. This issue is fixed in version 8.2.3. To workaround this issue without patching the redis-server executable is to prevent users from executing XACKDEL operation. This can be done using ACL to restrict XACKDEL command.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-04

Last Modified

2025-12-08

Generated

2026-07-06

AI Q&A

2025-11-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-62507

Affected Vendors & Products

Vendor	Product	Version / Range
redis	redis	From 8.2.0 (inc) to 8.2.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability in Redis versions 8.2.0 and above allows a user to run the XACKDEL command with multiple IDs, triggering a stack buffer overflow. This overflow may potentially lead to remote code execution, meaning an attacker could execute arbitrary code on the affected system. The issue is fixed in version 8.2.3, and as a workaround, users can be prevented from executing the XACKDEL command using Access Control Lists (ACL).

Impact Analysis

The vulnerability can lead to remote code execution on the Redis server, which means an attacker could gain control over the system running Redis. This could result in unauthorized access, data theft, data corruption, or disruption of services relying on Redis.

Mitigation Strategies

To mitigate this vulnerability immediately without patching, restrict the execution of the XACKDEL command using Redis Access Control Lists (ACL). This prevents users from running the vulnerable command. Additionally, upgrading Redis to version 8.2.3 or later will fix the issue.

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