CVE-2025-13188 Details
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.
A stack-based buffer overflow vulnerability has been identified in the D-Link DIR-816L router, specifically in the 2_06_b09_beta firmware version. The issue arises in the 'authenticationcgi_main' function of the 'authentication.cgi' file, where the 'Password' argument can be manipulated, leading to remote exploitation. This vulnerability affects products that are no longer supported by the manufacturer.
Users are advised to implement restrictive firewall rules to block unauthorized access to the router.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 17, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(authentication.cgi).pdf | CISA-ADP | ExploitThird Party Advisory |
| https://github.com/scanleale/IOT_sec/blob/main/DIR-816L%20stack%20overflow(authentication.cgi).pdf | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.332476 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.332476 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.685538 | [email protected] | Third Party AdvisoryVDB Entry |
| https://www.dlink.com/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| dlink dir-816l firmware | 2.06.b09 beta |
CPE
Remediation
| |
| dlink dir-816l | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 20, 2025 | Initial Analysis | [email protected] |
| Nov 17, 2025 | CVE Modified | CISA-ADP |
| Nov 14, 2025 | New CVE Received | [email protected] |