---
title: "CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-29635/
description: "CVE-2025-29635 (D-Link DIR-823X): Exploited in the wild (CISA KEV). A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-03-25
date_modified: 2026-04-25
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-29635"
kev: true
cvss: 7.2
epss: 0.87944
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- 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.

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 7.2 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- 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.

## Sources

- [Listed in CISA KEV notes (supportannouncement.us.dlink.com)](https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10469)
- [CVE.org record CVE-2025-29635](https://www.cve.org/CVERecord?id=CVE-2025-29635)
- [NVD entry CVE-2025-29635](https://nvd.nist.gov/vuln/detail/CVE-2025-29635)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-29635)
- [github.com](https://github.com/mono7s/Dir-823x/blob/main/set_prohibiting/set_prohibiting.md)
- [akamai.com](https://www.akamai.com/blog/security-research/2026/apr/cve-2025-29635-mirai-campaign-targets-d-link-devices)

---
Source page: https://erroneo.us/security/cve/CVE-2025-29635/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt