D-Link DIR-823X's set_prohibiting POST Endpoint Accepts Injected Commands and Executes Them on Remote Devices; CISA's May 8th KEV Deadline Has Passed for This Potentially End-of-Life Router

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2025-29635

Key Details

CVE	CVE-2025-29635
Vulnerability Name	D-Link DIR-823X Command Injection Vulnerability
Affected products	D-Link DIR-823X
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-77 (Improper Neutralization of Special Elements used in a Command ('Command Injection'))
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-04-24.
Exploitation prediction (EPSS)	87.94% probability of exploitation in the next 30 days (100% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-05-08 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
D-Link	DIR-823X

Vendor

Product

Affected Versions

Patch Status

D-Link

DIR-823X

Subsystems	General OT
Sectors	Multiple

What to Know

D-Link DIR-823X contains a command injection vulnerability that allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

What to Do

Monitor D-Link's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2025-29635
CVE	https://www.cve.org/CVERecord?id=CVE-2025-29635

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-29635

CVE

https://www.cve.org/CVERecord?id=CVE-2025-29635

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-04-24
Required Action Due Date	2026-05-08
Required Action	Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-04-24

Required Action Due Date

2026-05-08

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.