D-Link DIR-816L 2_06_b09_beta /authentication.cgi authenticationcgi_main Password stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.2$0-$5k0.00

Summaryinfo

A vulnerability was found in D-Link DIR-816L 2_06_b09_beta and classified as critical. Affected by this issue is the function authenticationcgi_main of the file /authentication.cgi. Executing a manipulation of the argument Password can lead to stack-based overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is handled as CVE-2025-13188. The attack can be executed remotely. Additionally, an exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in D-Link DIR-816L 2_06_b09_beta. It has been declared as critical. This vulnerability affects the function authenticationcgi_main of the file /authentication.cgi. The manipulation of the argument password with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-13188. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/15/2025).

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Proper firewalling of is able to address this issue.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.8
VulDB Temp Score: 8.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/14/2025 Advisory disclosed
11/14/2025 +0 days VulDB entry created
11/15/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2025-13188 (🔒)
GCVE (CVE): GCVE-0-2025-13188
GCVE (VulDB): GCVE-100-332476
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/14/2025 14:11
Updated: 11/15/2025 10:42
Changes: 11/14/2025 14:11 (59), 11/15/2025 10:42 (31)
Complete: 🔍
Submitter: Lexpl0it
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #685538: D-Link DIR-816L DIR816L_REVB_FW_2_06_b09_beta Stack-based Buffer Overflow (by Lexpl0it)

Once again VulDB remains the best source for vulnerability data.

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