CVE-2025-62673: Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent

Routine

HIGH 8.0MITIGATE

CVE-2025-62673 is a high-severity flaw (CVSS 8.0) affecting archer ax53 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a maliciously formed field. This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120 and Archer AX12 v1.0: up to 1.5.1 Build 20260721.

Why this priority

High severity

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

Risk facts

CVSS score	8.0 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-122
Published	2026-02-03
Last modified	2026-09-22

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

Last updated 2026-09-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-03 19:16 UTCPublished CVE record published
2026-09-22 23:17 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-2025-62673?

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

Is CVE-2025-62673 being exploited?

CVE-2025-62673 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-2025-62673 affect?

CVE-2025-62673 affects archer ax53 firmware. Severity is high (CVSS 8.0). Heap-based Buffer Overflow vulnerability in Archer AX53 v1.0 and AX12 v1.0 (tdpserver modules) allows adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a

How urgent is CVE-2025-62673?

Priority 39/100. High severity

Software pages

TP-Link vulnerabilities

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References

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