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Public proof of conceptFix available

CVE-2025-32023

A public proof of concept exists; no exploitation attested.

  • Published2025-07-07
  • Fixed in8.1.3 · 8.0.4 · 8.0.3 · 7.4.5 · 7.2.10 · 6.2.19
  • WeaknessCWE-680

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2025-07-0716:15CVE publishedNVD
  2. 2026-02-04Exploit-DB entryExploit-DB

Versions per branch

OSV · NVD
Redis
BranchAffectedFixed in
8.1≥ 8.1.0, < 8.1.38.1.3
8.0≥ 7.3.0, < 8.0.48.0.4
8.0≥ 8.0.0, < 8.0.38.0.3
7.4≥ 7.4.0, < 7.4.57.4.5
7.2≥ 7.2.0, < 7.2.107.2.10
7.x≥ 7.0.0, < 7.2.107.2.10
7.2< 7.2.107.2.10
6.2≥ 2.8.0, < 6.2.196.2.19

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • redis
    Affected
    • = >= 8.0.0, < 8.0.3no fix stated
    • = >= 7.4-rc1, < 7.4.5no fix stated
    • = >= 7.0.0, < 7.2.10no fix stated
    • = >= 2.8.0, < 6.2.19no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-07

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • py3-redisChainguardall versions · fixed in 0and 4 other packages
  • redictDebian:14all versions · fixed in 7.3.5+ds-1
  • redictAlpine:v3.24all versions · fixed in 7.3.3-r2
  • redictAlpine:v3.23all versions · fixed in 7.3.3-r2
  • redictAlpine:v3.22all versions · fixed in 7.3.3-r2
  • redisUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • redisUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • redisUbuntu:Pro:18.04:LTSall versions · no fixed version listed

101 more package ranges on OSV.dev

Vendor advisories

  • CVE-2025-32023 Red Hat Product Security363 products fixed · 4 known affected

    redis: Redis Hyperloglog Out-of-Bounds Write Vulnerability

    rhaiis/vllm-cuda-rhel9 as a component of Red Hat AI Inference Server · rhaiis/vllm-rocm-rhel9 as a component of Red Hat AI Inference Server · ansible-automation-platform-25/aap-cloud-metrics-collector-rhel8 as a component of Red Hat Ansible Automation Platform 2 · +1 more

  • RHBA-2025:16395 Red Hat Product Security30 products fixed

    Red Hat Bug Fix Advisory: Red Hat Quay v3.12.12 bug fix release

  • RHBA-2025:14522 Red Hat Product Security30 products fixed

    Red Hat Bug Fix Advisory: Red Hat Quay v3.11.13 bug fix release

  • RHBA-2025:14521 Red Hat Product Security30 products fixed

    Red Hat Bug Fix Advisory: Red Hat Quay v3.13.8 bug fix release

  • RHBA-2025:13257 Red Hat Product Security30 products fixed

    Red Hat Bug Fix Advisory: Red Hat Quay v3.14.4 bug fix release

  • RHBA-2025:12510 Red Hat Product Security30 products fixed

    Red Hat Bug Fix Advisory: Red Hat Quay v3.10.13 bug fix release

11 more advisories

Full record on NVD

Fix

  1. Update Redis to 8.1.3 · 8.0.4 · 8.0.3 · 7.4.5 · 7.2.10 · 6.2.19
  2. Vendor fix Red Hat Product Security RHBA-2025:16395 · 30 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  3. Vendor fix Red Hat Product Security RHSA-2025:12892 · 18 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Workaround from the vendor Red Hat Product Security RHBA-2025:16395 · 30 productsPrevent users, specially unprivileged or untrusted users, to execute hyperloglog operations by using ACL to restrict hyperloglog commands.

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-52477
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2025-07-07
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-rp2m-q4j6-gr43

Frequently asked questions

What is CVE-2025-32023?

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.

Is CVE-2025-32023 actively exploited?

Active exploitation of CVE-2025-32023 has not been confirmed. Its EPSS score was 6.5% on 2026-11-07, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-32023?

CVE-2025-32023 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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