CVE-2025-7564: A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22

Q: How do I fix CVE-2025-7564?

bl-ac3600 firmware: upgrade to newer than 1.0.22. Exact commands for each OS are on this page.

Q: Is CVE-2025-7564 being exploited?

CVE-2025-7564 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-2025-7564 affect?

CVE-2025-7564 affects bl-ac3600 firmware. Severity is high (CVSS 7.8). A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded

Q: How urgent is CVE-2025-7564?

Priority 37/100. High severity; Public exploit reference

Routine

HIGH 7.8UPGRADE

CVE-2025-7564 is a high-severity flaw (CVSS 7.8) affecting bl-ac3600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded credentials. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-259, CWE-798
Published	2025-07-14
Last modified	2026-10-18

Publisher (CNA): VulDB · Vendor: lb-link

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-14 03:15 UTCPublished CVE record published
2026-10-18 21:10 UTCUpdated Record last modified

lb-link bl-ac3600 firmware UPGRADE

Affected: <= 1.0.22

Fixed in: newer than 1.0.22

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-2025-7564?

bl-ac3600 firmware: upgrade to newer than 1.0.22. Exact commands for each OS are on this page.

Is CVE-2025-7564 being exploited?

CVE-2025-7564 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-2025-7564 affect?

CVE-2025-7564 affects bl-ac3600 firmware. Severity is high (CVSS 7.8). A vulnerability, which was classified as critical, has been found in LB-LINK BL-AC3600 1.0.22. Affected by this issue is some unknown functionality of the file /etc/shadow. The manipulation with the input root:blinkadmin leads to hard-coded

How urgent is CVE-2025-7564?

Priority 37/100. High severity; Public exploit reference

Related CVEs

CVE-2025-7565 MEDIUM 5.3 UPGRADE A vulnerability, which was classified as critical, was found in LB-LINK BL-AC3600 up to 1.0.22

References

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