CVE-2020-7217: An ni_dhcp4_fsm_process_dhcp4_packet memory leak in openSUSE wicked 0.6.55 and earlier allows network attacker

Q: How do I fix CVE-2020-7217?

wicked: upgrade to newer than 0.6.55. Exact commands for each OS are on this page.

Q: Is CVE-2020-7217 being exploited?

CVE-2020-7217 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-7217 affect?

CVE-2020-7217 affects wicked. Severity is high (CVSS 7.5). An ni_dhcp4_fsm_process_dhcp4_packet memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets with a different client-id.

Q: How urgent is CVE-2020-7217?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2020-7217 is a high-severity flaw (CVSS 7.5) affecting wicked. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An ni_dhcp4_fsm_process_dhcp4_packet memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets with a different client-id.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-401
Published	2020-02-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opensuse

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-11 12:15 UTCPublished CVE record published
2026-06-17 03:24 UTCUpdated Record last modified

opensuse wicked UPGRADE

Affected: <= 0.6.55

Fixed in: newer than 0.6.55

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wicked || rpm -q wicked || wicked --version

2. UPGRADE to newer than 0.6.55 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wicked

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wicked

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7217?

wicked: upgrade to newer than 0.6.55. Exact commands for each OS are on this page.

Is CVE-2020-7217 being exploited?

CVE-2020-7217 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7217 affect?

CVE-2020-7217 affects wicked. Severity is high (CVSS 7.5). An ni_dhcp4_fsm_process_dhcp4_packet memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets with a different client-id.

How urgent is CVE-2020-7217?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-7216 HIGH 7.5 UPGRADE MITIGATE An ni_dhcp4_parse_response memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause
CVE-2013-4413 MEDIUM 5.0 UPGRADE Directory traversal vulnerability in controller/concerns/render_redirect.rb in the Wicked gem before 1.0.1 for

References

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