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PatchSiren cyber security CVE debrief

CVE-2026-30057 free5gc CVE debrief

An AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-27T17:17:50.897Z and has not been modified since then. This CVE-2026-30057 issue in the CreateUEContext handler component of free5gc v4.1.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted request. Security teams should assess affected systems and implement compensating controls if necessary. The vulnerability has a CVSS score of 7.5 and is considered HIGH severity.

Vendor
free5gc
Product
free5gc
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-27
Original CVE updated
2026-08-31
Advisory published
2026-08-27
Advisory updated
2026-08-31

Who should care

Security teams and administrators responsible for free5gc v4.1.0 should verify affected scope and inventory for CVE-2026-30057 and monitor for potential DoS attacks. This includes teams managing network infrastructure, system administrators, and cybersecurity professionals responsible for vulnerability management and incident response. They should review the official CVE record and NVD detail page for further information.

Technical summary

A potential Denial of Service (DoS) vulnerability exists in the CreateUEContext handler component of free5gc v4.1.0. Attackers may cause a DoS by supplying crafted requests. This issue has been publicly disclosed and verified by official sources. Security teams should assess affected systems and implement compensating controls if necessary. The vulnerability has a CVSS score of 7.5 and is considered HIGH severity.

Defensive priority

High priority due to potential for Denial of Service (DoS) via crafted requests.

Recommended defensive actions

  • Verify affected scope and inventory for CVE-2026-30057
  • Monitor for and restrict crafted requests to the CreateUEContext handler component
  • Consider compensating controls and exception tracking for potential DoS attacks
  • Review official CVE record and NVD detail page for further information
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

Evidence is limited; primary official records indicate a potential Denial of Service (DoS) vulnerability in free5gc v4.1.0. Verify affected scope and inventory for CVE-2026-30057. Security teams should review the official CVE record and NVD detail page for further information. Limited source detail suggests verifying system configurations and monitoring for potential DoS attacks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-30057 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-30057

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-30057 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-30057

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.