TI-2025-12059 Aliases CVE-2025-13189 GHSA-27q7-wp8x-jjqq

D-Link DIR-816L gena.cgi genacgi_main stack-based overflow

HIGH 73CWE-119Published 2025-11-15 · Updated 2025-11-17

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability has been found in D-Link DIR-816L 2_06_b09_beta. This affects the function genacgi_main of the file gena.cgi. The manipulation of the argument SERVER_ID/HTTP_SID leads to stack-based buffer overflow. The attack is possible to be carried out 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 it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00974 62nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
D-Link	DIR-816L	2_06_b09_beta	—	No fix listed	CNA

DIR-816L VendorD-Link Affected 2_06_b09_beta Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:dlink:dir-816l_firmware:2.06.b09:beta::::::	2.06.b09 beta	Vulnerable	D-Link Japan K.K.
cpe:2.3:h:dlink:dir-816l:-:::::::*	not specified by NVD	Running on	D-Link Japan K.K.

cpe:2.3:o:dlink:dir-816l_firmware:2.06.b09:beta:*:*:*:*:*:* Versions 2.06.b09 beta Vulnerable ·D-Link Japan K.K.
cpe:2.3:h:dlink:dir-816l:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-13189
2026-10-03 Alias added: GHSA-27q7-wp8x-jjqq

References

Exploit 1

https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(gena.cgi).pdf

Other 1

https://www.dlink.com/

TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8

See all 979 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences