CVE-2025-9579: A weakness has been identified in LB-LINK BL-X26 1.2.8

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MEDIUM 6.3MITIGATE

CVE-2025-9579 is a medium-severity flaw (CVSS 6.3) affecting bl-x26 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in LB-LINK BL-X26 1.2.8. The impacted element is an unknown function of the file /goform/set_hidessid_cfg of the component HTTP Handler. This manipulation of the argument enable causes os command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	5.7% (top 7%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2025-08-28
Last modified	2026-09-26

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

Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-28 19:15 UTCPublished CVE record published
2026-09-26 00:10 UTCUpdated Record last modified

b-link bl-x26 firmware MITIGATE

Affected: 1.2.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.8

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-2025-9579?

bl-x26 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-9579 being exploited?

CVE-2025-9579 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-2025-9579 affect?

CVE-2025-9579 affects bl-x26 firmware. Severity is medium (CVSS 6.3). A weakness has been identified in LB-LINK BL-X26 1.2.8. The impacted element is an unknown function of the file /goform/set_hidessid_cfg of the component HTTP Handler. This manipulation of the argument enable causes os command injection. Th

How urgent is CVE-2025-9579?

Priority 50/100. EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2025-9580 MEDIUM 6.3 MITIGATE A security vulnerability has been detected in LB-LINK BL-X26 1.2.8

References

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