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Vulnerabilities

Vulnerability · CVE-2026-30405

An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · An issue in GoBGP

Check if you run it

No confirmed exploitation is on record for CVE-2026-30405. EPSS is 0.57%. Act only if a listed version of An issue in GoBGP 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 GoBGP).
  • 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
0.57%
Remediation
Not established
Affected products
cpe osrg/gobgp

An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute

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 osrg/gobgp4.2.0

How to fix CVE-2026-30405

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-2026-30405. EPSS is 0.57%. Act only if a listed version of An issue in GoBGP is installed.

Which versions are affected?

Compare what you have installed with 4.2.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.57%. 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 16, 2026 · NIST NVD

    Detected

    An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute

  2. Jun 17, 2026 · NIST NVD

    Updated

    An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute

Sources

  • CVE.orgVulnerability recordCVE-2026-30405

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-30405

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-30405

    An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute

    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.