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Public proof of concept

CVE-2025-1609

A public proof of concept exists; no exploitation attested.

  • Published2025-02-24
  • WeaknessCWE-77 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability has been found in LB-LINK AC1900 Router 1.0.2 and classified as critical. Affected by this vulnerability is the function websGetVar of the file /goform/set_cmd. The manipulation of the argument cmd leads to os command injection. The attack can be launched remotely. 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.

Timeline

dates in UTC
  1. 2025-02-2402:15CVE publishedNVD

Versions per branch

NVD
Lb-link ac1900 firmwareversion to verify
BranchAffectedFixed in
1.0= 1.0.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • LB-LINK AC1900 Router
    Affected
    • = 1.0.2no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-02-24

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-02-24
  • CNACVSS 4.05.3known since 2026-10-23
  • CNACVSS 3.16.3known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNACVSS 2.06.5known since 2026-10-23
  • CNAweakness (CWE)CWE-77, CWE-78known since 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score10.2 %read 2026-11-09
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2025-02-24
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-fw6f-4rpm-3gpw

Frequently asked questions

What is CVE-2025-1609?

A vulnerability has been found in LB-LINK AC1900 Router 1.0.2 and classified as critical. Affected by this vulnerability is the function websGetVar of the file /goform/set_cmd. The manipulation of the argument cmd leads to os command injection. The attack can be launched remotely. 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.

Is CVE-2025-1609 actively exploited?

A proof-of-concept exploit exists for CVE-2025-1609, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-1609?

CVE-2025-1609 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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