SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

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…

CRITICAL 9.8EPSS 3.47%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.47% probability · 88th percentile
CISA KEV
Not listed
Weakness
CWE-94
Affected
iptime/n104s-r1 firmware · iptime/n104v firmware · iptime/n1e firmware · iptime/n1plus firmware · iptime/n1plus-i firmware · iptime/n1v firmware · iptime/n2e firmware · iptime/n2eplus firmware · iptime/n2plus firmware · iptime/n2plus-i firmware · iptime/n2v firmware · iptime/n2vs firmware · iptime/n3 firmware · iptime/n3-i firmware · iptime/n5 firmware · iptime/n5-i firmware · iptime/n6 firmware · iptime/n600 firmware · iptime/n6004r firmware · iptime/n602e firmware · +40 more
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.