CVE-2025-4843: A vulnerability was found in D-Link DCS-932L 2.18.01

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HIGH 8.8MITIGATE

CVE-2025-4843 is a high-severity flaw (CVSS 8.8) affecting dcs-932l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in D-Link DCS-932L 2.18.01. It has been classified as critical. This affects the function SubUPnPCSInit of the file /sbin/udev. The manipulation of the argument CameraName leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-119, CWE-121, CWE-787
Published	2025-05-18
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

2025-05-18 00:15 UTCPublished CVE record published
2026-06-17 09:34 UTCUpdated Record last modified

dlink dcs-932l firmware MITIGATE

Affected: 2.18.01

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.18.01

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-2025-4843?

dcs-932l firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-4843 being exploited?

CVE-2025-4843 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-2025-4843 affect?

CVE-2025-4843 affects dcs-932l firmware. Severity is high (CVSS 8.8). A vulnerability was found in D-Link DCS-932L 2.18.01. It has been classified as critical. This affects the function SubUPnPCSInit of the file /sbin/udev. The manipulation of the argument CameraName leads to stack-based buffer overflow. It i

How urgent is CVE-2025-4843?

Priority 54/100. High severity; Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2026-36983 HIGH 7.3 MITIGATE D-Link DCS-932L v2.18.01 is vulnerable to Command Injection in the function sub_42EF14 of the file /bin/alphap
CVE-2025-4842 HIGH 8.8 MITIGATE A vulnerability was found in D-Link DCS-932L 2.18.01
CVE-2025-4841 HIGH 8.8 MITIGATE A vulnerability was found in D-Link DCS-932L 2.18.01 and classified as critical
CVE-2024-37606 MEDIUM 6.5 MITIGATE A Stack overflow vulnerability in D-Link DCS-932L REVB_FIRMWARE_2.18.01 allows attackers to cause a Denial of
CVE-2021-41504 HIGH 8.0 UPGRADE MITIGATE An Elevated Privileges issue exists in D-Link DCS-5000L v1.05 and DCS-932L v2.17 and older

References

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