CVE-2026-3485: A flaw has been found in D-Link DIR-868L 110b03

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CRITICAL 9.8REMOTEMITIGATE

CVE-2026-3485 is a critical-severity flaw (CVSS 9.8) affecting dir-868l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in D-Link DIR-868L 110b03. This affects the function sub_1BF84 of the component SSDP Service. This manipulation of the argument ST causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.8% (top 8%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2026-03-03
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: dlink

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

Am I affected?

Timeline

2026-03-03 21:16 UTCPublished CVE record published
2026-06-17 10:43 UTCUpdated Record last modified

dlink dir-868l firmware MITIGATE

Affected: 110b03

Fixed in: no fixed release known

Safe to downgrade to: a release before 110b03

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 · python-hatchling · FIXED · 1.33.0-1.fc46 · FEDORA-2026-3ccbf17812 · source

sudo dnf upgrade --advisory=FEDORA-2026-3ccbf17812

Fedora ELN · pie · FIXED · 1.5.3-1.eln159 · FEDORA-2026-e009523caa · source

sudo dnf upgrade --advisory=FEDORA-2026-e009523caa

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-2026-3485?

dir-868l firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3485 being exploited?

CVE-2026-3485 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-2026-3485 affect?

CVE-2026-3485 affects dir-868l firmware. Severity is critical (CVSS 9.8). A flaw has been found in D-Link DIR-868L 110b03. This affects the function sub_1BF84 of the component SSDP Service. This manipulation of the argument ST causes os command injection. It is possible to initiate the attack remotely. The exploi

How urgent is CVE-2026-3485?

Priority 70/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

D-Link vulnerabilities

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References

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