CVE-2026-37459

An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9
https://access.redhat.com/errata/RHSA-2026:24347
https://access.redhat.com/errata/RHSA-2026:24370
https://access.redhat.com/security/cve/CVE-2026-37459
https://bugzilla.redhat.com/show_bug.cgi?id=2466513
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-04 18:16

Updated : 2026-07-15 02:20

NVD link : CVE-2026-37459

Mitre link : CVE-2026-37459

CVE.ORG link : CVE-2026-37459

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-191

Integer Underflow (Wrap or Wraparound)

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