SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-12831

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.

MEDIUM 5.3EPSS 1.43%

Does this matter?

Lower severity and a low EPSS score (1.43%). Track it; it rarely justifies an emergency change on its own.

Description

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

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.43% probability · 73th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-732
Affected
linuxfoundation/free range routing
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.43%26 October 202626 October 2026

EPSS 1.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.