Packages
- frr - FRRouting suite of internet protocols
Details
It was discovered that FRR incorrectly handled certain OSPF Traffic
Engineering and Segment Routing TLVs. An attacker could possibly use this
issue to cause FRR to crash, resulting in a denial of service.
(CVE-2026-28532)
It was discovered that FRR incorrectly handled certain BGP FlowSpec
components. An attacker could possibly use this issue to cause FRR to
crash, resulting in a denial of service. (CVE-2026-37457)
It was discovered that FRR did not properly validate certain MP_REACH_NLRI
messages. An authenticated user could possibly use this issue to cause FRR
to crash, resulting in a denial of service. (CVE-2026-37458)
It was discovered that FRR incorrectly handled processing certain BGP
UPDATE messages. An attacker could possibly use this issue to cause FRR to
crash, resulting in a denial of service. This...
It was discovered that FRR incorrectly handled certain OSPF Traffic
Engineering and Segment Routing TLVs. An attacker could possibly use this
issue to cause FRR to crash, resulting in a denial of service.
(CVE-2026-28532)
It was discovered that FRR incorrectly handled certain BGP FlowSpec
components. An attacker could possibly use this issue to cause FRR to
crash, resulting in a denial of service. (CVE-2026-37457)
It was discovered that FRR did not properly validate certain MP_REACH_NLRI
messages. An authenticated user could possibly use this issue to cause FRR
to crash, resulting in a denial of service. (CVE-2026-37458)
It was discovered that FRR incorrectly handled processing certain BGP
UPDATE messages. An attacker could possibly use this issue to cause FRR to
crash, resulting in a denial of service. This issue only affected Ubuntu
25.04 and Ubuntu 25.10. (CVE-2026-37459)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | frr – 10.5.1-1ubuntu4.1 | ||
| 25.10 questing | frr – 10.4.1-3ubuntu1.4 | ||
| 24.04 LTS noble | frr – 8.4.4-1.1ubuntu6.7 | ||
| 22.04 LTS jammy | frr – 8.1-1ubuntu1.16 | ||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.