What is CVE-2021-42711?

CVE-2021-42711 is a high-severity vulnerability in Barracuda Network Access Client, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2021-12-01.

How severe is CVE-2021-42711?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-42711 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Barracuda Network Access Client

CVE-2021-42711

Barracuda Network Access Client before 5.2.2 creates a Temporary File in a Directory with Insecure Permissions. This file is executed with SYSTEM privileges when an unprivileged user performs a repair operation.

EPSS: 0.003 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Barracuda Network_access_client
N/a — versions n/a

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-42711?: CVE-2021-42711 is a high-severity vulnerability in Barracuda Network Access Client, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2021-12-01.
How severe is CVE-2021-42711?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-42711 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.