What is CVE-2022-0543?

CVE-2022-0543 is a critical-severity vulnerability in Redis, classified under Missing Authorization. CVSS score: 10.0/10. Published 2022-02-18.

How severe is CVE-2022-0543?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2022-0543 known to be exploited?

Yes. CVE-2022-0543 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 69 public proof-of-concept repositories are indexed.

Auth bypass in Redis

CVE-2022-0543

It was discovered, that redis, a persistent key-value database, due to a packaging issue, is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

Vulnerability class: Broken Access Control

Published 2022-02-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.994 (99.9th percentile), scored 2026-10-15.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.994 · newest: 0.994 · change: 0.000

Affected products

Redis
Canonical Ubuntu Linux — versions 20.04, 21.10
Debian Linux — versions 9.0, 10.0, 11.0
Debian Redis

Weakness classification (CWE)

CWE-862 — Missing Authorization

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-28. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-18.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

bugs.debian.org/1005787 (Patch, Third Party Advisory, Issue Tracking)
www.ubercomp.com/posts/2022-01-20_redis_on_debian_rce (Third Party Advisory)
lists.debian.org/debian-security-announce/2022/msg00048.html (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2022/dsa-5081 (vendor-advisory, Mailing List, Third Party Advisory)
security.netapp.com/advisory/ntap-20220331-0004/ (Third Party Advisory)
packetstormsecurity.com/files/166885/Redis-Lua-Sandbox-Escape.html (Exploit, VDB Entry, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-0543?: CVE-2022-0543 is a critical-severity vulnerability in Redis, classified under Missing Authorization. CVSS score: 10.0/10. Published 2022-02-18.
How severe is CVE-2022-0543?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2022-0543 known to be exploited?: Yes. CVE-2022-0543 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 69 public proof-of-concept repositories are indexed.