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TI-2020-10199 Aliases CVE-2020-12831GHSA-x83m-q23q-xv5j

An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7.3.1.

Priority LOW 27CWE-732Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

An issue was discovered in FRRouting FRR (aka Free Range Routing) through 7.3.1. When using the split-config feature, the init script creates an empty config file with world-readable default permissions, leading to a possible information leak via tools/frr.in and tools/frrcommon.sh.in. NOTE: some parties consider this user error, not a vulnerability, because the permissions are under the control of the user before any sensitive information is present in the file

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01432 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linuxfoundation:free_range_routing:*:*:*:*:*:*:*:*up to 7.3.1Vulnerablebackstage
  • cpe:2.3:a:linuxfoundation:free_range_routing:*:*:*:*:*:*:*:* Versions up to 7.3.1 Vulnerable ·backstage

Remediation

Red Hat 1 advisory

  • RHSA-2020:4619 Released 2020-11-04 · Red Hat rating Moderate
    frr security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 8) frr-7.0-10.el8, frr-contrib-7.0-10.el8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:4619

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-12831
  2. 2026-10-03 Alias added: GHSA-x83m-q23q-xv5j

References

Exploit 1

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences