CVE-2025-32023

Published Jul 7, 2025

Last updated 19 days ago

Redis

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-32023 is a vulnerability affecting Redis, an open-source, in-memory database. It stems from a stack/heap out-of-bounds write within hyperloglog operations. An authenticated user can exploit this vulnerability by using a specially crafted string, potentially leading to remote code execution. The vulnerability affects Redis versions from 2.8 to before 8.0.3, 7.4.5, 7.2.10, and 6.2.19. The issue is addressed in versions 8.0.3, 7.4.5, 7.2.10, and 6.2.19. As a workaround, users can restrict the execution of hyperloglog operations using ACL to mitigate the risk without patching.

Description: Redis is an open source, in-memory database that persists on disk. From 2.8 to before 8.0.3, 7.4.5, 7.2.10, and 6.2.19, an authenticated user may use a specially crafted string to trigger a stack/heap out of bounds write on hyperloglog operations, potentially leading to remote code execution. The bug likely affects all Redis versions with hyperloglog operations implemented. This vulnerability is fixed in 8.0.3, 7.4.5, 7.2.10, and 6.2.19. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing hyperloglog operations. This can be done using ACL to restrict HLL commands.
Source: security-advisories@github.com
NVD status: Analyzed
Products: redis

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.8
Impact score: 5.9
Exploitability score: 1.8
Vector string: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

security-advisories@github.com: CWE-680

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "B2D30200-61C0-442C-B01C-3F8205D0D89E",
            "versionEndExcluding": "6.2.19",
            "versionStartIncluding": "2.8.0"
          },
          {
            "criteria": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "DC6911F1-DD64-4675-B57B-CCBF11A7786C",
            "versionEndExcluding": "7.2.10",
            "versionStartIncluding": "7.2.0"
          },
          {
            "criteria": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "4454F0DA-CF1E-4CDA-95F7-8D38AF09A321",
            "versionEndExcluding": "7.4.5",
            "versionStartIncluding": "7.4.0"
          },
          {
            "criteria": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "950B5CD3-9E19-4DBA-8475-773C88193A71",
            "versionEndExcluding": "8.0.3",
            "versionStartIncluding": "8.0.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.