CVE-2026-0654: Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to

Q: How do I fix CVE-2026-0654?

deco be25 firmware: upgrade to newer than 1.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-0654 being exploited?

CVE-2026-0654 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-2026-0654 affect?

CVE-2026-0654 affects deco be25 firmware. Severity is high (CVSS 8.0). Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to be executed as part of an OS command. An authenticated adjacent attacker may execute arbitrary commands via crafted configuration

Routine

HIGH 8.0UPGRADE

CVE-2026-0654 is a high-severity flaw (CVSS 8.0) affecting deco be25 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to be executed as part of an OS command. An authenticated adjacent attacker may execute arbitrary commands via crafted configuration file, impacting confidentiality, integrity and availability of the device. This issue affects Deco BE25 v1.0: through 1.1.1 Build 20250822.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.0 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-03-02
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

2026-03-02 18:16 UTCPublished CVE record published
2026-06-17 10:11 UTCUpdated Record last modified

tp-link deco be25 firmware UPGRADE

Affected: <= 1.1.1

Fixed in: newer than 1.1.1

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-2026-0654?

deco be25 firmware: upgrade to newer than 1.1.1. Exact commands for each OS are on this page.

Is CVE-2026-0654 being exploited?

CVE-2026-0654 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-2026-0654 affect?

CVE-2026-0654 affects deco be25 firmware. Severity is high (CVSS 8.0). Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to be executed as part of an OS command. An authenticated adjacent attacker may execute arbitrary commands via crafted configuration

How urgent is CVE-2026-0654?

Priority 33/100. High severity

Software pages

TP-Link vulnerabilities

Related CVEs

CVE-2026-0655 HIGH 8.0 UPGRADE Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in TP-Link Deco B

References

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