CVE-2025-55423

CVSS 9.8 CRITICALEPSS 3.3%CWE-94

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.8EPSS 3.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

20 Jan 2026Published on NVD

22 May 2026Public PoC

Recommendation: Plan a near-term fix — a public PoC already exists.

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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

n/a · n/a

public PoCs found — 1

githubgithub.com/logis11/CVE-2025-55423-analysis-and-reproduction★ 0

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://docs.google.com/spreadsheets/d/1kryOFltCmnPJvDTpIrudgryt79uI4PWchuQ8-Gak24c/edit?usp=sharing https://github.com/0x0xxxx/CVE/blob/main/CVE-2025-55423/assets/affected_products_cve_format.json https://github.com/0x0xxxx/CVE/blob/main/CVE-2025-55423/README.md https://iptime.com/iptime/?pageid=4&page_id=126&dfsid=3&dftid=583&uid=25203&mod=document