Out-of-bounds Read in Apple macOS
CVE-2021-4166
vim is vulnerable to Out-of-bounds Read
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: -0.000
Affected products
- Apple macOS — versions 10.15.7
- Apple Mac OS X — versions 10.15.7
- Vim
- Vim Vim/vim — versions unspecified
- Debian Linux — versions 9.0, 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35
- openSUSE Factory
- Red Hat Enterprise Linux — versions 8.0
- SUSE Linux Enterprise — versions 12.0, 15.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.dev/bounties/229df5dd-5507-44e9-832c-c70364bdf035 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2022/01/15/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- support.apple.com/kb/HT213183 (Third Party Advisory, Release Notes)
- seclists.org/fulldisclosure/2022/Mar/29 (mailing-list, Mailing List, Third Party Advisory)
- support.apple.com/kb/HT213256 (Third Party Advisory)
- seclists.org/fulldisclosure/2022/May/35 (mailing-list, Mailing List, Third Party Advisory)
- support.apple.com/kb/HT213343 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4166?
- CVE-2021-4166 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2021-12-25.
- How severe is CVE-2021-4166?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2021-4166 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.