Buffer overflow in Microsoft Chakracore
CVE-2021-42279
Chakra Scripting Engine Memory Corruption Vulnerability
Vulnerability class: Buffer Overflow
EPSS: 0.019 (78.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Microsoft Chakracore — versions N/A
- Microsoft Windows_10 — versions 20h2, 21h1, 1607
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h1 — versions 10.0.0
- Microsoft Windows_11
Weakness classification (CWE)
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-42279?
- CVE-2021-42279 is a medium-severity vulnerability in Microsoft Chakracore, classified under Out-of-bounds Write. CVSS score: 4.2/10. Published 2021-11-10.
- How severe is CVE-2021-42279?
- Medium severity. CVSS v3 base score is 4.2 out of 10.