CVE-2020-13529

Name: CVE-2020-13529
Creator: NVD / NIST
Published: 2021-05-10T16:15:07.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.40%

Last modified Jun 17, 2026

CVE-2020-13529 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

1.40%

69.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Systemd Project	Systemd	245
Fedoraproject	Fedora	33
Netapp	Active Iq Unified Manager	All versions
Netapp	Cloud Backup	All versions

References

http://www.openwall.com/lists/oss-security/2021/08/04/2Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/17/3Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/07/3Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
https://security.gentoo.org/glsa/202107-48Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0005/Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142Exploit, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/04/2Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/17/3Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/07/3Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
https://security.gentoo.org/glsa/202107-48Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0005/Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142Exploit, Third Party Advisory

Timeline

Published: May 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13529?

How severe is CVE-2020-13529?

CVE-2020-13529 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13529?

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-2020-13529?

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

Scan your code now

Source: NVD / NIST