Security Digest · Vulnerability record · Known exploited
CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability
Exploited in the wild (CISA KEV). A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/setprohibiting via the corresponding function, triggering remote command execution.
CISA KEV · added 2026-04-24 CVSS 7.2 High EPSS 87.9% · p99.8
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run D-Link DIR-823X. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-04-24, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-05-08; treat that as the outer limit, not the target.
- EPSS 87.9%, percentile 99.8: FIRST’s model estimates a 87.9% chance of exploitation activity in the next 30 days, higher than 99.8% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.
What it is
A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/setprohibiting via the corresponding function, triggering remote command execution.
CISA’s summary
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.
Weakness type: CWE-77.
Product: D-Link DIR-823X · Assigned by: mitre · Published: 2025-03-25
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: high (admin)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2026-04-24; federal due date 2026-05-08. Known ransomware use: Unknown.
- CISA 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.
- CISA SSVC assessment: exploitation active, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 87.94% probability of exploitation activity in the next 30 days; percentile 99.8.
Timeline
- — CVE record published by mitre
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CVE record last updated
- — CISA remediation deadline for US federal agencies
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Listed in CISA KEV notes (supportannouncement.us.dlink.com) supportannouncement.us.dlink.com
Vulnerability records
- CVE.org record CVE-2025-29635 cve.org
- NVD entry CVE-2025-29635 nvd.nist.gov
Government
Other references from the CVE record and advisory
- github.com github.com
- akamai.com akamai.com
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