PT-2025-21816 · D Link · D-Link Dcs-932L

Beacox · CVE-2025-4843 · Published 2025-05-17 · Updated 2025-05-18

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions D-Link DCS-932L version 2.18.01

Description A critical issue affects the function SubUPnPCSInit of the file /sbin/udev. The manipulation of the argument CameraName leads to a 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 issue only affects products that are no longer supported by the maintainer.

Recommendations As a temporary workaround, consider disabling the SubUPnPCSInit function until a patch is available. Restrict access to the /sbin/udev file to minimize the risk of exploitation. Avoid using the CameraName argument in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-121

CWE-119

Related Identifiers

BDU:2025-05861

CVE-2025-4843

Affected Products

D-Link Dcs-932L

References · 13

• 🔥 https://github.com/BeaCox/IoT_vuln/tree/main/D-Link/DCS-932L/udev_bof · Exploit
• https://bdu.fstec.ru/vul/2025-05861 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-4843 · Security Note
• https://osv.dev/vulnerability/CVE-2025-4843 · Vendor Advisory
• https://t.me/cvenotify/122785 · Telegram Post
• https://t.me/cvetracker/24125 · Telegram Post
• https://vuldb.com/?id.309309 · Note
• https://vuldb.com/?ctiid.309309 · Note
• https://t.me/latest_high_impact_cve/2400 · Telegram Post
• https://twitter.com/CVEnew/status/1923947757511049541 · Twitter Post
• https://twitter.com/CveFindCom/status/1923891639451267578 · Twitter Post
• https://vuldb.com/?submit.574926 · Note
• https://dlink.com · Note