CVE-2023-38406

9.8 criticalEPSS 0.9%

Critical (9.8) in frrouting frrouting. EPSS 0.9% chance of exploitation in the next 30 days.

bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-755
Published: 2023-11-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19