| Name | CVE-2026-37457 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6322-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| frr (PTS) | bullseye | 7.5.1-1.1+deb11u2 | vulnerable |
| bullseye (security) | 7.5.1-1.1+deb11u4 | vulnerable |
| bookworm | 8.4.4-1.1~deb12u1 | vulnerable |
| bookworm (security) | 8.4.4-1.1~deb12u2 | fixed |
| trixie | 10.3-3 | vulnerable |
| trixie (security) | 10.3-3+deb13u1 | fixed |
| forky | 10.6.1-1 | fixed |
| sid | 10.6.1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| frr | source | bookworm | 8.4.4-1.1~deb12u2 | | DSA-6322-1 | |
| frr | source | trixie | 10.3-3+deb13u1 | | DSA-6322-1 | |
| frr | source | (unstable) | 10.6.0-2 | | | |
Notes
https://github.com/FRRouting/frr/commit/0e6882bc72c0278988a47b2f0f73b7a91099a25c (master)
https://github.com/FRRouting/frr/commit/b413dbc239841ce4d13824119df4be9c6f06647e (frr-10.6.0)