CVE-2026-5511: In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles inva

Q: How do I fix CVE-2026-5511?

archer ax72 firmware: upgrade to 1.4.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-5511 being exploited?

CVE-2026-5511 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-2026-5511 affect?

CVE-2026-5511 affects archer ax72 firmware. Severity is low (CVSS 2.7). In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles invalid user input, resulting in limited exposure of diagnostic command usage information. An authenticated attacker with administr

Q: How urgent is CVE-2026-5511?

Priority 12/100. No elevated risk signals yet.

Routine

LOW 2.7UPGRADE

CVE-2026-5511 is a low-severity flaw (CVSS 2.7) affecting archer ax72 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles invalid user input, resulting in limited exposure of diagnostic command usage information. An authenticated attacker with administrative privileges could exploit this issue to confirm the presence of the diagnostic utility and view its valid command-line syntax and options. The exposed information is limited in scope and does not include

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.7 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-209
Published	2026-05-19
Last modified	2026-07-24

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

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-19 17:16 UTCPublished CVE record published
2026-07-24 09:10 UTCUpdated Record last modified

tp-link archer ax72 firmware UPGRADE

Affected: < 1.4.6

Fixed in: 1.4.6

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-2026-5511?

archer ax72 firmware: upgrade to 1.4.6. Exact commands for each OS are on this page.

Is CVE-2026-5511 being exploited?

CVE-2026-5511 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-2026-5511 affect?

CVE-2026-5511 affects archer ax72 firmware. Severity is low (CVSS 2.7). In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles invalid user input, resulting in limited exposure of diagnostic command usage information. An authenticated attacker with administr

How urgent is CVE-2026-5511?

Priority 12/100. No elevated risk signals yet.

Software pages

TP-Link vulnerabilities

References

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