CVE-2026-117082

UnknownEPSS 0.20%

Last modified

CVE-2026-117082 is a vulnerability of currently unknown severity. An authentication bypass vulnerability in the Universal Plug and Play (UPnP) framework of the Sercomm AOT-4221SR 4.6 Dual Band GPON ONU device allows an attackers to execute arbitrary SOAP requests via port 5555. This flaw exposes 15 administrative, WAN, LAN, and firewall services without requiring credentials, enabling attackers to modify core routing tables, alter DNS servers, remove firewall rules, and completely compromise the network.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

An authentication bypass vulnerability in the Universal Plug and Play (UPnP) framework of the Sercomm AOT-4221SR 4.6 Dual Band GPON ONU device allows an attackers to execute arbitrary SOAP requests via port 5555. This flaw exposes 15 administrative, WAN, LAN, and firewall services without requiring credentials, enabling attackers to modify core routing tables, alter DNS servers, remove firewall rules, and completely compromise the network.

Metrics

EPSS Probability
0.20%

9.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
——n/a

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-117082?
An authentication bypass vulnerability in the Universal Plug and Play (UPnP) framework of the Sercomm AOT-4221SR 4.6 Dual Band GPON ONU device allows an attackers to execute arbitrary SOAP requests via port 5555. This flaw exposes 15 administrative, WAN, LAN, and firewall services without requiring credentials, enabling attackers to modify core routing tables, alter DNS servers, remove firewall rules, and completely compromise the network.
How severe is CVE-2026-117082?
Severity scoring for CVE-2026-117082 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-117082?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST