CVE-2025-14631: A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allows an adjacent attac

Q: How do I fix CVE-2025-14631?

archer be400 firmware: upgrade to newer than 1.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-14631 being exploited?

CVE-2025-14631 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-2025-14631 affect?

CVE-2025-14631 affects archer be400 firmware. Severity is medium (CVSS 6.5). A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allows an adjacent attacker to cause a denial-of-service (DoS) by triggering a device reboot. This issue affects Archer BE400: xi 1.1.0 Build 20250710 re

Q: How urgent is CVE-2025-14631?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2025-14631 is a medium-severity flaw (CVSS 6.5) affecting archer be400 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allows an adjacent attacker to cause a denial-of-service (DoS) by triggering a device reboot. This issue affects Archer BE400: xi 1.1.0 Build 20250710 rel.14914.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-476
Published	2026-01-07
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

2026-01-07 12:16 UTCPublished CVE record published
2026-06-17 08:36 UTCUpdated Record last modified

tp-link archer be400 firmware UPGRADE

Affected: <= 1.1.0

Fixed in: newer than 1.1.0

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-2025-14631?

archer be400 firmware: upgrade to newer than 1.1.0. Exact commands for each OS are on this page.

Is CVE-2025-14631 being exploited?

CVE-2025-14631 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-2025-14631 affect?

CVE-2025-14631 affects archer be400 firmware. Severity is medium (CVSS 6.5). A NULL Pointer Dereference vulnerability in TP-Link Archer BE400 V1(802.11 modules) allows an adjacent attacker to cause a denial-of-service (DoS) by triggering a device reboot. This issue affects Archer BE400: xi 1.1.0 Build 20250710 re

How urgent is CVE-2025-14631?

Priority 26/100. No elevated risk signals yet.

Software pages

TP-Link vulnerabilities

References

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