Exploited CVEs / D-Link / CVE-2025-29635

CVE-2025-29635

D-Link DIR-823X Command Injection Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2026-05-08 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: D-Link Support Announcements, linked below.

Risk summary

HighCISA KEV

7.2

CVSS base

90%

EPSS exploit probability

High

Severity

2026-04-24

Added to KEV

2026-05-08 (past due)

CISA due date

Actively exploited D-Link DIR-823X vulnerability, High severity, CVSS 7.2. Added to the CISA KEV catalog 2026-04-24.

Senserva AI read on CVE-2025-29635 CISA required action Official fix for CVE-2025-29635 Admin questions

Senserva AI Opinion for CVE-2025-29635

The D-Link DIR-823X router takes arbitrary commands via a POST request to its set_prohibiting endpoint from an authorized attacker, and the product may be end-of-life, meaning a patch may never come. It is rated High Severity at CVSS 7.2 with a strikingly high 87% EPSS score, confirmed exploited since 2026-04-24. Consumer-grade routers like this turn up in branch offices and home offices of remote staff, where they quietly join botnets.

Do this: Replace or retire DIR-823X units rather than waiting for a fix, and change their admin credentials in the meantime.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2025-29635

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I run IT security. Facts for CVE-2025-29635, an actively exploited vulnerability (source: https://senserva.com/cve/CVE-2025-29635.html, data from CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability
- Affected: D-Link DIR-823X
- Severity: High, CVSS 7.2; EPSS 30-day exploitation probability 90%
- Added to CISA KEV: 2026-04-24; federal remediation due 2026-05-08
- Ransomware-linked: no
- 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.
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) The fastest safe path to remediation. 4) How to check whether my environment is exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch now

Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.

The fix ships from the vendor: D-Link Support Announcements.

Do this now: Federal remediation deadline 2026-05-08; treat it as your outer bound. Patch now and verify deployment on every exposed device.

Updated August 14, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Full tracking and change history for CVE-2025-29635

Published: 2026-04-24
Last revised: 2026-04-24
Changes tracked: 1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

Senserva Watchevery change we have recorded for this one

What changed, and when

2026-04-24 added to the CISA KEV catalog by CISA
2026-07-17 CVSS 0.0 to 7.2; EPSS first scored at 87.2%
2026-07-24 EPSS 87.2% to 89.6%

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

CISA required action

Federal (BOD 22-01) remediation due date: 2026-05-08 (past due).

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

Official fix for CVE-2025-29635

The authoritative fix and affected-version list are published by the vendor. Find the DIR-823X advisory on D-Link Support Announcements.

D-Link Support Announcements CISA KEV entry

Common questions about CVE-2025-29635

Is CVE-2025-29635 actively exploited?

Yes. CVE-2025-29635 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-04-24, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 90%.

What is the CISA deadline and required action for CVE-2025-29635?

CISA set the federal (BOD 22-01) remediation due date at 2026-05-08, which has passed; treat any unremediated system as overdue. The verbatim 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.

What fixes CVE-2025-29635?

The authoritative fix is in the vendor advisory: see D-Link Support Announcements for the patched DIR-823X versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2025-29635?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2025-29635's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

Scope and sources

More exploited D-Link CVEs: CVE-2022-37055 CVE-2020-25078 CVE-2020-25079 CVE-2022-40799 CVE-2024-0769 CVE-2023-25280 CVE-2021-40655 CVE-2014-100005
All D-Link exploited CVEs on one page: D-Link vulnerabilities actively exploited.
Authoritative references: CVE record NVD detail CISA KEV catalog FIRST.org EPSS

Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.