Red Hat Security Advisory: frr security update
A denial of service vulnerability (CVE-2026-37457) exists in FRRouting (frr) due to crafted FlowSpec components. FRRouting is free software that manages TCP/IP routing protocols including BGP4, OSPF, ISIS, RIP, and others. This vulnerability affects Red Hat Enterprise Linux 9 packages of frr. Red Hat has issued a security update to address this issue.
AI Analysis
Technical Summary
CVE-2026-37457 is a denial of service vulnerability in FRRouting (frr) caused by a crafted FlowSpec component. FRRouting is a free software suite managing various TCP/IP routing protocols including BGP4, OSPF, ISIS, and others. The vulnerability affects the frr package distributed with Red Hat Enterprise Linux 8 across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat has released updated frr packages (version 7.5.1-24.el8_10) to fix this issue as detailed in advisory RHSA-2026:24340. The vulnerability is associated with CWE-787 (Out-of-bounds Write).
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition in the affected FRRouting software, potentially disrupting routing protocol operations on affected systems running Red Hat Enterprise Linux 8. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated frr packages (7.5.1-24.el8_10) for Red Hat Enterprise Linux 8 to address this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2026:24340 and the referenced article https://access.redhat.com/articles/11258. Applying this update remediates the issue. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: frr security update
Description
A denial of service vulnerability (CVE-2026-37457) exists in FRRouting (frr) due to crafted FlowSpec components. FRRouting is free software that manages TCP/IP routing protocols including BGP4, OSPF, ISIS, RIP, and others. This vulnerability affects Red Hat Enterprise Linux 9 packages of frr. Red Hat has issued a security update to address this issue.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-37457 is a denial of service vulnerability in FRRouting (frr) caused by a crafted FlowSpec component. FRRouting is a free software suite managing various TCP/IP routing protocols including BGP4, OSPF, ISIS, and others. The vulnerability affects the frr package distributed with Red Hat Enterprise Linux 8 across multiple architectures (x86_64, s390x, ppc64le, aarch64). Red Hat has released updated frr packages (version 7.5.1-24.el8_10) to fix this issue as detailed in advisory RHSA-2026:24340. The vulnerability is associated with CWE-787 (Out-of-bounds Write).
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition in the affected FRRouting software, potentially disrupting routing protocol operations on affected systems running Red Hat Enterprise Linux 8. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated frr packages (7.5.1-24.el8_10) for Red Hat Enterprise Linux 8 to address this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2026:24340 and the referenced article https://access.redhat.com/articles/11258. Applying this update remediates the issue. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:24371
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a27320ee29bf47b509bf2e4
Added to database: 06/08/2026, 21:20:14 UTC
Last enriched: 06/28/2026, 00:06:43 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 47
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