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VulnerabilityPublished

CVE-2025-9579: LB-LINK BL-X26 · OS Command Injection

Affects LB-LINK BL-X26Source CVE Database V5

0

Public exploit available · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
5.7% chance of exploitation in 30 days – higher than 92% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
LB-LINK BL-X26Affected
  • =1.2.8
Fixed in–

AI-suggested

First, restrict network access to the management interface of the BL-X26 routers by implementing firewall rules or network segmentation to limit exposure to trusted administrative hosts only. Disable remote management features if enabled, or restrict them to secure VPN connections. Monitor network traffic for unusual activity targeting the /goform/set_hidessid_cfg endpoint or signs of command injection attempts. Consider replacing affected devices with alternative routers from vendors with active security support if feasible. Additionally, implement strict network monitoring and intrusion detection systems to detect exploitation attempts early. Maintain up-to-date backups of router configurations and prepare for rapid device replacement or factory resets if compromise is suspected. Finally, engage with LB-LINK support channels persistently to demand a security patch and monitor vulnerability databases for updates.

Description

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.

References

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