# RHSA-2026:24347: frr security update

RHSA-2026:24347, released June 24, 2026, fixes 3 CVEs in frr (version 10.4.4-1.el10_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-24347
- Platform: Linux
- Released: Jun 24, 2026
- Priority: High (Closes CVE-2026-37457, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:24347

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [frr](https://patchblox.com/security/data/product/linux/frr.md) | RHEL 10 | 10.4.4-1.el10_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-37457](https://patchblox.com/security/data/cve/CVE-2026-37457.md) | High | 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. | 7.5 | 0.0039 |  |
| [CVE-2026-37459](https://patchblox.com/security/data/cve/CVE-2026-37459.md) | High | An integer underflow in 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. | 7.5 | 0.0037 |  |
| [CVE-2026-37460](https://patchblox.com/security/data/cve/CVE-2026-37460.md) | High | 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. | 7.5 | 0.0034 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo