CVE-2025-15608: This vulnerability in AX53 v1, AX55 v4 and AX55 v4.6 results from insufficient input sanitization in the devic

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CRITICAL 9.8REMOTEMITIGATE

CVE-2025-15608 is a critical-severity flaw (CVSS 9.8) affecting archer ax53 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This vulnerability in AX53 v1, AX55 v4 and AX55 v4.6 results from insufficient input sanitization in the device’s probe handling logic, where unvalidated parameters can trigger a stack-based buffer overflow that causes the affected service to crash and, under specific conditions, may enable remote code execution through complex heap-spray techniques. Successful exploitation may result in repeated service unavailability and, in certain scenario

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-03-20
Last modified	2026-08-12

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

Last updated 2026-08-12 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-20 17:16 UTCPublished CVE record published
2026-08-12 20:17 UTCUpdated Record last modified

tp-link archer ax53 firmware MITIGATE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

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-2025-15608?

archer ax53 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-15608 being exploited?

CVE-2025-15608 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-2025-15608 affect?

CVE-2025-15608 affects archer ax53 firmware. Severity is critical (CVSS 9.8). This vulnerability in AX53 v1, AX55 v4 and AX55 v4.6 results from insufficient input sanitization in the device’s probe handling logic, where unvalidated parameters can trigger a stack-based buffer overflow that causes the affected service

How urgent is CVE-2025-15608?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

TP-Link vulnerabilities

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References

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