CVE-2026-37459

high Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.1%
Exploitation probability in 30 days
Top 83% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: May 4, 2026 (67 days ago)
Last Modified: May 4, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in FRRouting (FRR). An unauthenticated remote attacker can exploit an integer underflow vulnerability by supplying a specially crafted BGP (Border Gateway Protocol) UPDATE message. This issue can lead to a Denial of Service (DoS).

CWE

CWE-191

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com