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Vulnerabilities

Vulnerability · CVE-2026-30653

An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

Published Mar 24, 2026 · catalog updated Jun 17, 2026 · An issue in Free5GC

Check if you run it

No confirmed exploitation is on record for CVE-2026-30653. EPSS is 0.64%. Act only if a listed version of An issue in Free5GC is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (An issue in Free5GC).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.64%
Remediation
Not established
Affected products
cpe free5gc/free5gc

An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe free5gc/free5gcversion unspecified

How to fix CVE-2026-30653

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-30653. EPSS is 0.64%. Act only if a listed version of An issue in Free5GC is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.64%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 24, 2026 · NIST NVD

    Detected

    An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

  2. Jun 17, 2026 · NIST NVD

    Updated

    An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

Sources

  • CVE.orgVulnerability recordCVE-2026-30653

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-30653

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-30653

    An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.