CVE-2021-30655 Privilege escalation in macOS

What is CVE-2021-30655?

CVE-2021-30655 is a critical vulnerability in Apple Mac Os X, published on 8 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An application may be able to execute arbitrary code with system privileges. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. The issue was addressed with improved permissions logic.

Which versions are affected by CVE-2021-30655?

It affects 2 products.

Products include Apple Mac Os X, Apple Macos.

How do I fix CVE-2021-30655?

No fix has been published for CVE-2021-30655 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-30655 being exploited?

There is no known exploitation of CVE-2021-30655 in the wild and no public exploit code.

Other vulnerabilities in Apple Mac Os X

• CVE-2014-7169 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2014-6271 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2012-1823 PHP-CGI Query String Parameter Exploited Critical 9.8
• CVE-2021-30713 Apple macOS Unspecified Exploited High 7.8
• CVE-2019-8526 Apple macOS Use-After-Free Exploited High 7.8

All Apple Mac Os X vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4wxr-8w46-674r.