D-Link DCS-932L gpio sub_404780 stack-based overflow

Published 17 mo ago 2025-05-17 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.8

v3.1 · CNA

CISA KEV

not known exploited

EPSS

1.3%

percentile 71%

Public exploits

none known

A vulnerability was found in D-Link DCS-932L 2.18.01 and classified as critical. Affected by this issue is the function sub_404780 of the file /bin/gpio. The manipulation of the argument CameraName leads to stack-based buffer overflow. The attack may be launched 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.

CISA SSVC assessment

Exploitation: Proof of concept public
Automatable: no
Technical impact: total
Assessed: 17 mo ago 2025-05-19

Exploit prediction (EPSS)

1.33% probability of exploitation in the next 30 days, higher than 71% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	4.0	8.7	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`
CNA	3.1	8.8	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CNA	3.0	8.8	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CNA	2.0	9.0	`AV:N/AC:L/Au:S/C:C/I:C/A:C`
CNA	4.0	8.7	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
CNA	3.1	8.8	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
NVD	3.1	9.8	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CNA	2.0	9.0	`AV:N/AC:L/Au:S/C:C/I:C/A:C`

Affected products

D-Link DCS-932L

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787 Out-of-bounds Write

References

vuldb.com /?id.309308 · vdb-entry, technical-description
vuldb.com /?ctiid.309308 · signature, permissions-required
vuldb.com /?submit.574924 · third-party-advisory
github.com /BeaCox/IoT_vuln/tree/main/D-Link/DCS-932L/gpio_bof · exploit
dlink.com / · product

Sources

CVE List: CVE-2025-4841
NVD: CVE-2025-4841

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary