CVE-2025-15606: A Denial-of-Service (DoS) vulnerability in the httpd component of TP-Link's TD-W8961N v4.0 due to improper inp

Q: How do I fix CVE-2025-15606?

td-w8961nd firmware: upgrade to 250925. Exact commands for each OS are on this page.

Q: Is CVE-2025-15606 being exploited?

CVE-2025-15606 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-15606 affect?

CVE-2025-15606 affects td-w8961nd firmware. Severity is high (CVSS 7.5). A Denial-of-Service (DoS) vulnerability in the httpd component of TP-Link's TD-W8961N v4.0 due to improper input sanitization, allows crafted requests to trigger a processing error that causes the httpd service to crash. Successful exploit

Q: How urgent is CVE-2025-15606?

Priority 37/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2025-15606 is a high-severity flaw (CVSS 7.5) affecting td-w8961nd firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Denial-of-Service (DoS) vulnerability in the httpd component of TP-Link's TD-W8961N v4.0 due to improper input sanitization, allows crafted requests to trigger a processing error that causes the httpd service to crash. Successful exploitation may allow the attacker to cause service interruption, resulting in a DoS condition.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-03-23
Last modified	2026-06-17

Publisher (CNA): TPLink · Vendor: tp-link

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-23 19:16 UTCPublished CVE record published
2026-06-17 08:38 UTCUpdated Record last modified

tp-link td-w8961nd firmware UPGRADE

Affected: < 250925

Fixed in: 250925

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-15606?

td-w8961nd firmware: upgrade to 250925. Exact commands for each OS are on this page.

Is CVE-2025-15606 being exploited?

CVE-2025-15606 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-15606 affect?

CVE-2025-15606 affects td-w8961nd firmware. Severity is high (CVSS 7.5). A Denial-of-Service (DoS) vulnerability in the httpd component of TP-Link's TD-W8961N v4.0 due to improper input sanitization, allows crafted requests to trigger a processing error that causes the httpd service to crash. Successful exploit

How urgent is CVE-2025-15606?

Priority 37/100. High severity; Remotely exploitable, no login, no user action

Software pages

Apache HTTP Server vulnerabilities · TP-Link vulnerabilities

References

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