Red Hat Security Advisory: frr10 security update
Two denial of service vulnerabilities have been identified in FRRouting (frr10) used in Red Hat Enterprise Linux 9. These vulnerabilities involve crafted FlowSpec components and crafted BGP UPDATE messages that can cause service disruption. Red Hat has released security updates to address these issues in version 10.4.3-3.el9_8 of the frr10 package. The vulnerabilities are rated with high severity by Red Hat Product Security.
AI Analysis
Technical Summary
FRRouting (frr10) in Red Hat Enterprise Linux 9 contains two denial of service vulnerabilities: CVE-2026-37457, caused by a crafted FlowSpec component, and CVE-2026-37459, caused by a crafted BGP UPDATE message. Both vulnerabilities can lead to denial of service conditions. Red Hat has issued an important security advisory (RHSA-2026:24370) providing updated packages that fix these issues. The advisory covers multiple architectures and extended update support versions of Red Hat Enterprise Linux 9. No CVSS scores are provided in the advisory, but the severity is rated as important (high).
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service in FRRouting, potentially disrupting routing protocol operations on affected systems running Red Hat Enterprise Linux 9. This may impact network availability and stability where FRRouting is used for managing TCP/IP routing protocols.
Mitigation Recommendations
Red Hat has released updated frr10 packages (version 10.4.3-3.el9_8) that fix these denial of service vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:24370 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: frr10 security update
Description
Two denial of service vulnerabilities have been identified in FRRouting (frr10) used in Red Hat Enterprise Linux 9. These vulnerabilities involve crafted FlowSpec components and crafted BGP UPDATE messages that can cause service disruption. Red Hat has released security updates to address these issues in version 10.4.3-3.el9_8 of the frr10 package. The vulnerabilities are rated with high severity by Red Hat Product Security.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FRRouting (frr10) in Red Hat Enterprise Linux 9 contains two denial of service vulnerabilities: CVE-2026-37457, caused by a crafted FlowSpec component, and CVE-2026-37459, caused by a crafted BGP UPDATE message. Both vulnerabilities can lead to denial of service conditions. Red Hat has issued an important security advisory (RHSA-2026:24370) providing updated packages that fix these issues. The advisory covers multiple architectures and extended update support versions of Red Hat Enterprise Linux 9. No CVSS scores are provided in the advisory, but the severity is rated as important (high).
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service in FRRouting, potentially disrupting routing protocol operations on affected systems running Red Hat Enterprise Linux 9. This may impact network availability and stability where FRRouting is used for managing TCP/IP routing protocols.
Mitigation Recommendations
Red Hat has released updated frr10 packages (version 10.4.3-3.el9_8) that fix these denial of service vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:24370 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. 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-2026:24370
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-37459"]
- Cvss Version
- null
Threat ID: 6a27320ee29bf47b509bf2f8
Added to database: 06/08/2026, 21:20:14 UTC
Last enriched: 06/28/2026, 00:05:31 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 118
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