CVE-2020-13776

Name: CVE-2020-13776
Creator: NVD / NIST
Published: 2020-06-03T03:15:10.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2020-13776 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.46%

36.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Systemd Project	Systemd	<= 245
Netapp	Active Iq Unified Manager	All versions
Netapp	Solidfire \& Hci Management Node	All versions
Fedoraproject	Fedora	32

References

https://github.com/systemd/systemd/issues/15985Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IYGLFEKG45EYBJ7TPQMLWROWPTZBEU63/
https://security.netapp.com/advisory/ntap-20200611-0003/Third Party Advisory
https://github.com/systemd/systemd/issues/15985Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IYGLFEKG45EYBJ7TPQMLWROWPTZBEU63/
https://security.netapp.com/advisory/ntap-20200611-0003/Third Party Advisory

Timeline

Published: Jun 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13776?

How severe is CVE-2020-13776?

CVE-2020-13776 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13776?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13776?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST