CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Oct 16, 2023

CVE-2023-41991

High

EPSS 3.2%CISA KEV

Apple/Multiple Products

Description

Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.

EPSS — Exploit Probability

3.2%

Higher than 86.8% of all CVEs

Required Action

https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931 ; https://nvd.nist.gov/vuln/detail/CVE-2023-41991

Risk Assessment

ELEVATED

In CISA KEV

Details

Severity: High
EPSS: 3.2%
CISA KEV: Yes
Ransomware: Unknown
Articles: 0

Timeline

Published

Sep 25, 2023

Added to KEV

Sep 25, 2023

Remediation Due

Oct 16, 2023

Affected Product

Apple

Multiple Products

View all Apple CVEs

External Links

NVD (NIST)CVE Details MITRE CVE