CVE-2026-37458 · cross-distro fix matrix

CVE-2026-37458: It was discovered that FRR incorrectly handled certain OSPF Traffic

Affects 6 Linux releases across 22 (distro × package) combinations. First disclosed: 2026-05-04.

CVSS v3:MEDIUM · 6.5(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-37458 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

frr→ fixed in8.1-1ubuntu1.16USN-8376-1

sudo apt-get install --only-upgrade -y frr

frr-doc→ fixed in8.1-1ubuntu1.16USN-8376-1

sudo apt-get install --only-upgrade -y frr-doc

frr-pythontools→ fixed in8.1-1ubuntu1.16USN-8376-1

sudo apt-get install --only-upgrade -y frr-pythontools

frr-rpki-rtrlib→ fixed in8.1-1ubuntu1.16USN-8376-1

sudo apt-get install --only-upgrade -y frr-rpki-rtrlib

frr-snmp→ fixed in8.1-1ubuntu1.16USN-8376-1

sudo apt-get install --only-upgrade -y frr-snmp

Ubuntu noble

Source: Ubuntu USN

frr→ fixed in8.4.4-1.1ubuntu6.7USN-8376-1
```
sudo apt-get install --only-upgrade -y frr
```
frr-doc→ fixed in8.4.4-1.1ubuntu6.7USN-8376-1
```
sudo apt-get install --only-upgrade -y frr-doc
```
frr-pythontools→ fixed in8.4.4-1.1ubuntu6.7USN-8376-1
```
sudo apt-get install --only-upgrade -y frr-pythontools
```
frr-rpki-rtrlib→ fixed in8.4.4-1.1ubuntu6.7USN-8376-1
```
sudo apt-get install --only-upgrade -y frr-rpki-rtrlib
```
frr-snmp→ fixed in8.4.4-1.1ubuntu6.7USN-8376-1
```
sudo apt-get install --only-upgrade -y frr-snmp
```

Ubuntu questing

Source: Ubuntu USN

frr→ fixed in10.4.1-3ubuntu1.4USN-8376-1

sudo apt-get install --only-upgrade -y frr

frr-doc→ fixed in10.4.1-3ubuntu1.4USN-8376-1

sudo apt-get install --only-upgrade -y frr-doc

frr-pythontools→ fixed in10.4.1-3ubuntu1.4USN-8376-1

sudo apt-get install --only-upgrade -y frr-pythontools

frr-rpki-rtrlib→ fixed in10.4.1-3ubuntu1.4USN-8376-1

sudo apt-get install --only-upgrade -y frr-rpki-rtrlib

frr-snmp→ fixed in10.4.1-3ubuntu1.4USN-8376-1

sudo apt-get install --only-upgrade -y frr-snmp

Ubuntu resolute

Source: Ubuntu USN

frr→ fixed in10.5.1-1ubuntu4.1USN-8376-1

sudo apt-get install --only-upgrade -y frr

frr-doc→ fixed in10.5.1-1ubuntu4.1USN-8376-1

sudo apt-get install --only-upgrade -y frr-doc

frr-pythontools→ fixed in10.5.1-1ubuntu4.1USN-8376-1

sudo apt-get install --only-upgrade -y frr-pythontools

frr-rpki-rtrlib→ fixed in10.5.1-1ubuntu4.1USN-8376-1

sudo apt-get install --only-upgrade -y frr-rpki-rtrlib

frr-snmp→ fixed in10.5.1-1ubuntu4.1USN-8376-1

sudo apt-get install --only-upgrade -y frr-snmp

Debian bookworm

Source: Debian Security Tracker

frr→ fixed in8.4.4-1.1~deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y frr
```

Debian trixie

Source: Debian Security Tracker

frr→ fixed in10.3-3+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y frr
```

Are YOU affected by CVE-2026-37458?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2026-37458dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. From $9/mo, 14-day free trial, cancel anytime.

See StackPatch (from $9/mo)