Home/CVE/A vulnerability was detected in D-Link DIR-816L 2_06_b09_beta. Affected by this vulnerability is the function authentica
CVE

CVE-2025-13188

A vulnerability was detected in D-Link DIR-816L 2_06_b09_beta. Affected by this vulnerability is the function authentica

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.

CRITICAL · CVSS 9.8 EPSS 0.0035
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
▤

Affected Products & Versions

1
dlink dir-816l firmwareall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · DIR-816Lgithub.com
◈

Detection Rules (IDS/IPS)

1
et-openET WEB_SPECIFIC_APPS D-Link authentication.cgi password Parameter Buffer Overflow Attempt (CVE-2025-13188)web-application-attack
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Nov 2025 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/?ctiid.332476Permissions RequiredVDB Entry
https://vuldb.com/?id.332476Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.685538Third Party AdvisoryVDB Entry
https://www.dlink.com/Product
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