Threats / D-Link / CVE-2025-29635
CVE-2025-29635
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
D-Link DIR-823X vulnerability
D-Link DIR-823X contains a command injection vulnerability in the /goform/set_prohibiting endpoint that allows authorized attackers to execute arbitrary commands on affected devices.
Verdict
Today item — known-exploited.
An authenticated attacker can inject and execute arbitrary system commands on vulnerable DIR-823X routers through a POST request, potentially compromising device integrity and network security. The product is reportedly end-of-life or end-of-service.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
6 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-04-24).
Probability (EPSS)
EPSS 0.3515 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: D-Link, DIR-823X. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-77 Command Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious POST request to /goform/set_prohibiting with injected shell commands embedded in the request parameters.
Business
An insider or compromised account holder gains unauthorized command execution capability on network infrastructure.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I execute arbitrary commands with the privileges of the web service process to modify device configuration, install backdoors, or pivot to other network segments.
Business
Device compromise enables lateral movement, data exfiltration, or persistent unauthorized access to the network.
3
Lateral reach — past segmentation narrative 3
Attacker
I maintain persistence by modifying startup scripts or installing rootkits that survive device reboots.
Business
Long-term compromise of network perimeter security increases exposure to advanced threats and regulatory violations.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05