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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?

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