How severe is CVE-2025-13188?

CVE-2025-13188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-13188 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-13188?

CVE-2025-13188 affects Dlink Dir-816l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-13188?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-13188 have an EU (EUVD) identifier?

Yes. CVE-2025-13188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197671.

When was CVE-2025-13188 published?

CVE-2025-13188 was published on 2025-11-14 and last updated on 2026-06-17.

CVE-2025-13188

CVE-2025-13188 is a critical-severity vulnerability in Dlink Dir-816l Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
CVSS v4: 8.9
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197671
Weakness: CWE-119
Affected product: Dlink Dir-816l Firmware
Published: 2025-11-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-13188?: 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.
How severe is CVE-2025-13188?: CVE-2025-13188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-13188 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-13188?: CVE-2025-13188 affects Dlink Dir-816l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-13188?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-13188 have an EU (EUVD) identifier?: Yes. CVE-2025-13188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197671.
When was CVE-2025-13188 published?: CVE-2025-13188 was published on 2025-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-816l_firmware:2.06.b09:beta:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-816l Firmware

CVE-2022-28956 — Critical (CVSS 9.8): An issue in the getcfg.php component of D-Link DIR816L_FW206b01 allows attackers to access the device via a crafted…
CVE-2020-15893 — Critical (CVSS 9.8): An issue was discovered on D-Link DIR-816L devices 2.x before 1.10b04Beta02. Universal Plug and Play (UPnP) is enabled…
CVE-2025-13191 — High (CVSS 8.8): A vulnerability was determined in D-Link DIR-816L 2_06_b09_beta. This issue affects the function soapcgi_main of the…
CVE-2025-13190 — High (CVSS 8.8): A vulnerability was found in D-Link DIR-816L 2_06_b09_beta. This vulnerability affects the function scandir_main of the…
CVE-2025-13189 — High (CVSS 8.8): A vulnerability has been found in D-Link DIR-816L 2_06_b09_beta. This affects the function genacgi_main of the file…
CVE-2022-28955 — High (CVSS 7.5): An access control issue in D-Link DIR816L_FW206b01 allows unauthenticated attackers to access folders folder_view.php…

All CVEs affecting Dlink Dir-816l Firmware →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →