HOME VULNERABILITIESCVE-2020-13529

MEDIUM

CVE-2020-13529

CWE-290Published: May 10, 2021· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official 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.

Technical Analysis

CVE-2020-13529 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.1.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Affected Vendors & Products

Fedora1 product(s)

fedora

netapp2 product(s)

active iq unified managercloud backup

systemd_project1 product(s)

systemd

Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/08/04/2

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/08/17/3

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/09/07/3

ADVISORYhttps://security.gentoo.org/glsa/202107-48

ADVISORYhttps://security.netapp.com/advisory/ntap-20210625-0005/

ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1142

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/08/04/2

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/08/17/3

ADVISORYhttp://www.openwall.com/lists/oss-security/2021/09/07/3

ADVISORYhttps://security.gentoo.org/glsa/202107-48

ADVISORYhttps://security.netapp.com/advisory/ntap-20210625-0005/

ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1142

All References (14)

→

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

Quick Facts

CVE IDCVE-2020-13529

CVSS Score6.1 / 10

SeverityMEDIUM

WeaknessCWE-290

CISA KEVNo

Affected3 vendor(s)

PublishedMay 10, 2021

Related CVEs (CWE-290)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2020-13529 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

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