CVE-2026-37457
High
Description
An off-by-one out-of-bounds write vulnerability in the bgp_flowspec_op_decode() function (bgpd/bgp_flowspec_util.c) of FRRouting (FRR) stable/10.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted FlowSpec component.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFrrouting
PublishedMay 1, 2026
First seenMay 1, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| frrouting frrouting | 10.0 | — |
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