CVE-2026-37460
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
Missing input validation in the rfapiRibBi2Ri() function (rfapi_rib.c) in FRRouting (FRR) from stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) by supplying a crafted BGP UPDATE message.
Risk Assessment
An attacker can remotely crash the FRR router, causing network service unavailability.
Recommendation
Update FRRouting to version stable/10.7 or later, which includes the input validation fix.
Other vulnerabilities in FRRouting
See all- CVE-2020-12831Low
In FRRouting (FRR) up to version 7.3.1, when using the split-config feature, the init script creates an empty config file with world-readable default permissions, potentially leading to information leakage via frr.in and frrcommon.sh.in tools.
- CVE-2026-37459High
An integer underflow vulnerability exists in FRRouting (FRR) versions stable/10.0 through stable/10.6. Attackers can cause a Denial of Service (DoS) by sending a crafted BGP UPDATE message.
- CVE-2026-37457High
An off-by-one out-of-bounds write vulnerability in the bgp_flowspec_op_decode() function of FRRouting (FRR) stable/10.0 allows attackers to cause a Denial of Service (DoS) via a crafted FlowSpec component.
- CVE-2023-3748Low
A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages, leading to an infinite loop and causing a denial of service.
Original NVD description (English source)
Missing input validation in the rfapiRibBi2Ri() function (rfapi_rib.c) of 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.