D-Link DIR-816 A2 DDNS Service access control

published 2025-01-02 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-51343

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

A vulnerability classified as critical was found in D-Link DIR-816 A2 1.10CNB05_R1B011D88210. This vulnerability affects unknown code of the file /goform/DDNS of the component DDNS Service. The manipulation leads to improper access controls. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 22 mo ago (2025-01-02)

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Unauthorized_Vulnerability/D-Link/DIR-816/DDNS.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:P/A:N
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

D-Link DIR-816 A2

Classification

Weakness

CWE-284 Improper Access Control
CWE-266 Incorrect Privilege Assignment

References

github.com /abcdefg-png/IoT-vulnerable/blob/main/Unauthorized_Vulnerability/D-Link/DIR-816/DDNS.md
exploit, broken-link
vuldb.com /?id.289918
vdb-entry, third-party-advisory
vuldb.com /?ctiid.289918
signature, permissions-required
vuldb.com /?submit.472074
third-party-advisory, vdb-entry
dlink.com /
product

Sources

CVE List CVE-2024-13102
NVD CVE-2024-13102

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary