High 8.8Published Nov 15, 2025

CVE-2025-13189D-Link DIR-816L gena.cgi genacgi_main stack-based overflow

Updated under an hour ago (Oct 27, 2026, 8:40 AM ET)

Does this affect you?

It affects D-Link DIR-816L and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for D-Link DIR-816L

Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Nov 17, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

D-Link DIR-816L d_link:dir_816l (from the name)	2_06_b09_beta	CNA record
dlink dir-816l_firmware dlink:dir-816l_firmware	2.06.b09	NVD

References

References

https://vuldb.com/?id.332478	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.332478	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.685540	third-party-advisory, vdb-entry
https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(gena.cgi).pdf	exploit, third-party-advisory
https://www.dlink.com/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.