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Public proof of concept

CVE-2025-55423

A public proof of concept exists; no exploitation attested.

  • Published2026-01-20
  • WeaknessCWE-94

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 command injection vulnerability exists in the upnp_relay() function in multiple ipTIME router models because the controlURL value used to pass port-forwarding information to an upper router is passed to system() without proper validation or sanitization, allowing OS command injection.

Timeline

dates in UTC
  1. 2026-01-2018:16CVE publishedNVD

Versions per branch

NVD
Iptime a104r firmwareversion to verify
BranchAffectedFixed in
10.7≥ 9.90.8, ≤ 10.07.4no fix published
—all versionsno fix published
Iptime a1 firmwareversion to verify
BranchAffectedFixed in
10.7≥ 9.96.8, ≤ 10.07.4no fix published
Iptime a1004 firmwareversion to verify
BranchAffectedFixed in
12.16≥ 9.90.8, ≤ 12.16.2no fix published

160 more products in the sources.

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

Fix

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

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
Published
2026-01-20
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-495m-v35r-f849

Frequently asked questions

What is CVE-2025-55423?

A command injection vulnerability exists in the upnp_relay() function in multiple ipTIME router models because the controlURL value used to pass port-forwarding information to an upper router is passed to system() without proper validation or sanitization, allowing OS command injection.

Is CVE-2025-55423 actively exploited?

Active exploitation of CVE-2025-55423 has not been confirmed. Its EPSS score was 3.7% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-55423?

CVE-2025-55423 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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Sources for this record