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Public proof of conceptFix available

CVE-2025-46817

A public proof of concept exists; no exploitation attested.

  • Published2025-10-03
  • Fixed in8.2.2 · 8.0.4 · 7.4.6 · 7.2.11 · 6.2.20
  • WeaknessCWE-190

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. 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.

Timeline

dates in UTC
  1. 2025-10-0318:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-46817?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-46817?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Redis
BranchAffectedFixed in
8.2≥ 8.2.0, < 8.2.28.2.2
8.0≥ 8.0.0, < 8.0.48.0.4
7.4≥ 7.4.0, < 7.4.67.4.6
7.x≥ 7.0, < 7.2.117.2.11
6.2< 6.2.206.2.20

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

Fix

  1. Update Redis to 8.2.2 · 8.0.4 · 7.4.6 · 7.2.11 · 6.2.20

Advisories and patches

Detection

read 2026-10-23 19:24 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifieddwisiswant0/CVE-2025-46817slayerkkkk/CVE-2025-46817-PoC
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-10-03
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17read 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-190read 2026-10-23
  • FIRST EPSSEPSS score3.9 %2026-10-22
  • PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2025-10-03
Last Modified
2026-10-19
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-46817?

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.

Is CVE-2025-46817 actively exploited?

Active exploitation of CVE-2025-46817 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-46817?

CVE-2025-46817 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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