CVE-2026-7067: A vulnerability was determined in D-Link DIR-822 A_101

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HIGH 7.3REMOTEMITIGATE

CVE-2026-7067 is a high-severity flaw (CVSS 7.3) affecting dir-822 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was determined in D-Link DIR-822 A_101. The impacted element is the function system of the file /udhcpcd/dhcpd.c of the component udhcpd DHCP Service. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-74, CWE-77
Published	2026-04-27
Last modified	2026-10-26

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-27 00:16 UTCPublished CVE record published
2026-10-26 00:10 UTCUpdated Record last modified

dlink dir-822 firmware MITIGATE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · mingw-qt5-qtwebkit · FIXED · 5.212.0-0.46.alpha4.fc46 · FEDORA-2026-46ae541c22 · source

sudo dnf upgrade --advisory=FEDORA-2026-46ae541c22

Fedora ELN · kdominate · FIXED · 26.08.2-2.eln159 · FEDORA-2026-b1d98239fd · source

sudo dnf upgrade --advisory=FEDORA-2026-b1d98239fd

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-2026-7067?

dir-822 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-7067 being exploited?

CVE-2026-7067 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-2026-7067 affect?

CVE-2026-7067 affects dir-822 firmware. Severity is high (CVSS 7.3). A vulnerability was determined in D-Link DIR-822 A_101. The impacted element is the function system of the file /udhcpcd/dhcpd.c of the component udhcpd DHCP Service. This manipulation of the argument Hostname causes command injection. The

How urgent is CVE-2026-7067?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

D-Link vulnerabilities

References

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