Privilege escalation in Apple macOS
CVE-2023-43766
Certain WithSecure products allow Local privilege escalation via the lhz archive unpack handler. This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, Linux Security 64 12.0 , Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 1.0.35-1.
Vulnerability class: Privilege Escalation
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (5.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Apple macOS
- F-Secure Atlant — versions 1.0.35-1
- F-Secure Client Security — versions 15.00
- F-Secure Elements Endpoint Protection
- F-Secure Email And Server Security — versions 15.00
- F-Secure Linux Protection — versions 12.0
- F-Secure Linux Security 64 — versions 12.0
- F-Secure Server Security — versions 15.00
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.withsecure.com/en/support/security-advisories (Vendor Advisory)
- www.withsecure.com/en/support/security-advisories/cve-2023-nnn4 (Broken Link)
Frequently asked questions
- What is CVE-2023-43766?
- CVE-2023-43766 is a high-severity vulnerability in Apple macOS, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2023-09-22.
- How severe is CVE-2023-43766?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-43766 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.