D-Link DIR-878 HTTP POST Request dllog.cgi information disclosure

published 2025-01-15 21 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-1704

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

A vulnerability classified as problematic has been found in D-Link DIR-878 1.03. Affected is an unknown function of the file /dllog.cgi of the component HTTP POST Request Handler. The manipulation leads to information disclosure. It is possible to launch the attack 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: 21 mo ago (2025-01-15)

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% 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-878/dllog.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:L/VI:N/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:L/I:N/A:N
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

D-Link DIR-878

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 Improper Access Control

References

github.com /abcdefg-png/IoT-vulnerable/blob/main/Unauthorized_Vulnerability/D-Link/DIR-878/dllog.md
exploit, broken-link
vuldb.com /?id.291924
vdb-entry, third-party-advisory
vuldb.com /?ctiid.291924
signature, permissions-required, vdb-entry
vuldb.com /?submit.475011
third-party-advisory, vdb-entry
dlink.com /
product

Sources

CVE List CVE-2025-0481
NVD CVE-2025-0481

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