Red Hat Security Advisory: frr security update
A denial of service vulnerability (CVE-2026-37457) exists in FRRouting (frr) due to improper handling of crafted FlowSpec components. FRRouting is a routing software supporting multiple TCP/IP protocols. This vulnerability affects Red Hat Enterprise Linux 9 and related distributions. Red Hat has issued an important security update to address this issue. The vulnerability is rated as high severity by Red Hat Product Security. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
FRRouting (frr), a free software suite managing various TCP/IP routing protocols, contains a denial of service vulnerability identified as CVE-2026-37457. The issue arises from processing crafted FlowSpec components, which can cause the software to crash or become unresponsive. This affects multiple Red Hat Enterprise Linux 9 variants and architectures. Red Hat has released updated packages to fix this vulnerability as detailed in advisory RHSA-2026:24371.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition in affected FRRouting instances, potentially disrupting routing protocol operations on impacted systems. There are no reports of active exploitation in the wild. The impact is limited to service availability degradation rather than code execution or data compromise.
Mitigation Recommendations
Red Hat has released an official security update fixing this vulnerability. Users should apply the updated frr packages provided in Red Hat Enterprise Linux 9 and related distributions as per advisory RHSA-2026:24371. Detailed update instructions are available at https://access.redhat.com/articles/11258. 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 improper handling of crafted FlowSpec components. FRRouting is a routing software supporting multiple TCP/IP protocols. This vulnerability affects Red Hat Enterprise Linux 9 and related distributions. Red Hat has issued an important security update to address this issue. The vulnerability is rated as high severity by Red Hat Product Security. No known exploits are reported in the wild at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FRRouting (frr), a free software suite managing various TCP/IP routing protocols, contains a denial of service vulnerability identified as CVE-2026-37457. The issue arises from processing crafted FlowSpec components, which can cause the software to crash or become unresponsive. This affects multiple Red Hat Enterprise Linux 9 variants and architectures. Red Hat has released updated packages to fix this vulnerability as detailed in advisory RHSA-2026:24371.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service condition in affected FRRouting instances, potentially disrupting routing protocol operations on impacted systems. There are no reports of active exploitation in the wild. The impact is limited to service availability degradation rather than code execution or data compromise.
Mitigation Recommendations
Red Hat has released an official security update fixing this vulnerability. Users should apply the updated frr packages provided in Red Hat Enterprise Linux 9 and related distributions as per advisory RHSA-2026:24371. Detailed update instructions are available at https://access.redhat.com/articles/11258. 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: 6/8/2026, 9:20:14 PM
Last enriched: 6/8/2026, 9:21:39 PM
Last updated: 6/9/2026, 6:07:46 AM
Views: 6
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