CVE-2021-31294: redis Reachable Assertion
CVSS: 5.9v3.1MediumModified
AliasesUBUNTU-CVE-2021-31294DEBIAN-CVE-2021-31294
Published 15-07-2023Last modified 30-10-2024
Vulnerability summary
CVE-2021-31294 is a medium (CVSS 5.9) Reachable Assertion vulnerability in redis. EPSS estimates a 1.31% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.9/10
010
Medium · v3.1 (NVD)EPSS score
1.31%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 15-07-2023PublishedVulnerability first disclosed.
- 30-10-2024Last modifiedVulnerability information updated.
Description
Redis before 6cbea7d allows a replica to cause an assertion failure in a primary server by sending a non-administrative command (specifically, a SET command). NOTE: this was fixed for Redis 6.2.x and 7.x in 2021. Versions before 6.2 were not intended to have safety guarantees related to this.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.31%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.31% on 19-09-2026
19-09-202619-10-2026
EPSS score1.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundRedis
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- redis< 5:7.0.1-4
Redis1 product
- redis< 6.2.0
Ubuntu1 product
- redisAll versions (No fix recorded)
3 vendors · 3 products
