CVE-2026-8273: A weakness has been identified in D-Link DNS-320 2.06B01

This month

MEDIUM 4.7MITIGATE

CVE-2026-8273 is a medium-severity flaw (CVSS 4.7) affecting dns-320 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host/cgi_set_ntp/cgi_fan_control/cgi_merge_user of the file /cgi-bin/system_mgr.cgi. This manipulation causes os command injection. It is possible to initiate the attack remotely.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	7.4% (top 6%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2026-05-11
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

2026-05-11 05:16 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

dlink dns-320 firmware MITIGATE

Affected: 2.06b01

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.06b01

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.

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-2026-8273?

dns-320 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-8273 being exploited?

CVE-2026-8273 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-2026-8273 affect?

CVE-2026-8273 affects dns-320 firmware. Severity is medium (CVSS 4.7). A weakness has been identified in D-Link DNS-320 2.06B01. This impacts the function cgi_set_host/cgi_set_ntp/cgi_fan_control/cgi_merge_user of the file /cgi-bin/system_mgr.cgi. This manipulation causes os command injection. It is possible t

How urgent is CVE-2026-8273?

Priority 45/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2026-5312 MEDIUM 5.3 UPGRADE UPGRADE A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, D
CVE-2026-8271 MEDIUM 4.7 MITIGATE A vulnerability was identified in D-Link DNS-320 2.06B01
CVE-2026-8272 MEDIUM 4.7 MITIGATE A security flaw has been discovered in D-Link DNS-320 2.06B01

References

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