CVE-2020-21583: kernel util-linux OS Command Injection
CVSS: 6.7v3.1MediumModified
AliasesUBUNTU-CVE-2020-21583DEBIAN-CVE-2020-21583
Published 22-08-2023Last modified 20-12-2024
Vulnerability summary
CVE-2020-21583 is a medium (CVSS 6.7) OS Command Injection vulnerability in kernel util-linux. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.6% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
6.7/10
010
Medium · v3.1 (NVD)EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Timeline
- 22-08-2023PublishedVulnerability first disclosed.
- 20-12-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in hwclock.13-v2.27 allows attackers to gain escalated privlidges or execute arbitrary commands via the path parameter when setting the date.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 6.7Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 18-09-2026
18-09-202618-10-2026
EPSS score0.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (bugs.debian.org)
Maturity: unknown
Exploit Reference (packetstormsecurity.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- util-linux< 2.27-1
Kernel1 product
- util-linux< 2.27
Ubuntu1 product
- util-linuxAll versions (No fix recorded)
3 vendors · 3 products
References
6 links
- packetstormsecurity.com/files/132061/hwclock-Privilege-Escalation.htmlREPORTExploitThird Party AdvisoryVDB Entry