Critical severity · published Nov 14, 2025
CVE-2025-13188
D-Link DIR-816L authentication.cgi authenticationcgi_main stack-based overflow
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
A vulnerability was detected in D-Link DIR-816L 2_06_b09_beta. Affected by this vulnerability is the function authenticationcgi_main of the file /authentication.cgi. Performing manipulation of the argument Password results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is now 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)2.4% · higher than 84% 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-2025-13188
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13188
Exploit
https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(authentication.cgi).pdf
Permissions Required
https://vuldb.com/?ctiid.332476
Third Party Advisory
https://vuldb.com/?id.332476
Third Party Advisory
https://vuldb.com/?submit.685538
Product
https://www.dlink.com/
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