Critical severity · published Nov 15, 2025
CVE-2025-13189
D-Link DIR-816L gena.cgi genacgi_main stack-based overflow
9.8
CVSS
1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DIR-816L · D-Link
2_06_b09_beta · source: vendor
DF
Dir-816l Firmware · Dlink
2.06.b09 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13189
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13189
Exploit
https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(gena.cgi).pdf
Permissions Required
https://vuldb.com/?ctiid.332478
Third Party Advisory
https://vuldb.com/?id.332478
Third Party Advisory
https://vuldb.com/?submit.685540
Product
https://www.dlink.com/
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