6.7

CVE-2020-13776: fedoraproject fedora Improper Privilege Management

Modified
AliasesMGASA-2021-0304UBUNTU-CVE-2020-13776DEBIAN-CVE-2020-13776
Published 03-06-2020Last modified 14-10-2026

Vulnerability summary

CVE-2020-13776 is a medium (CVSS 6.7) Improper Privilege Management vulnerability in fedoraproject fedora. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 39.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
RHSA-2021:1611RHSA-2021:3900CGA-6X82-85RC-CRVX

Timeline

  1. 03-06-2020
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.46% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard5 products
  • py3-systemdAll versions (No fix recorded)
  • py3.10-systemdAll versions (No fix recorded)
  • py3.11-systemdAll versions (No fix recorded)
  • py3.12-systemdAll versions (No fix recorded)
  • py3.13-systemdAll versions (No fix recorded)
Netapp2 products
Debian1 product
  • systemd< 246-2
Fedoraproject1 product
Mageia1 product
  • systemd< 241-8.6.mga7
Systemd_project1 product
Ubuntu1 product
  • systemdAll versions (No fix recorded)

7 vendors · 12 products

References

11 links
Show all 11 references