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CVE-2026-1149VulnerabilityPublished Updated

CVE-2026-1149: Totolink LR350 · Command Injection

Affects Totolink LR350Source CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
3.0% chance of exploitation in 30 days – higher than 87% 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 19 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  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), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
TotolinkLR350Affected
  • =9.3.5u.6369_B20220309
Fixed in–

AI-suggested

To mitigate CVE-2026-1149, organizations should first verify if their Totolink LR350 devices run the affected firmware version 9.3.5u.6369_B20220309 and prioritize upgrading to a patched firmware once available from the vendor. Until patches are released, network administrators should restrict access to the router's management interfaces, especially blocking external WAN access to the /cgi-bin/cstecgi.cgi endpoint via firewall rules or access control lists. Implement network segmentation to isolate affected devices from critical internal networks to limit potential lateral movement. Monitor network traffic for unusual POST requests targeting the vulnerable endpoint and deploy intrusion detection/prevention systems with signatures for this exploit if available. Disable or restrict diagnostic features that use the vulnerable setDiagnosisCfg function if possible. Regularly audit device configurations and logs for signs of compromise. Additionally, consider replacing affected devices with models from vendors with timely security update practices if long-term patching is uncertain.

Description

A vulnerability was identified in Totolink LR350 9.3.5u.6369_B20220309. This issue affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument ip leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used.

References

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