VDB
CVE-2021-1871
CVE-2021-1871
PUBLISHED
KEV
CVSS 9.800000190734863 CRITICAL
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
EPSS 7.00% · 93.8th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
7.00%
93.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | qtwebkit-opensource-src | *, *, 5.212.0~alpha2-7build2 |
| Ubuntu:18.04:LTS | webkitgtk | 2.4.11-3ubuntu2, 2.4.11-3ubuntu3, 2.4.11-3 |
| Ubuntu:16.04:LTS | qtwebkit-source | 2.3.2-0ubuntu10, 2.3.2-0ubuntu11, 0 |
| Ubuntu:18.04:LTS | webkit2gtk | 2.28.4-0ubuntu0.18.04.1, 2.28.3-0ubuntu0.18.04.1, 2.28.0-0ubuntu0.18.04.3 |
| Ubuntu:20.04:LTS | wpewebkit | 0, 2.28.0-1, 2.28.1-1 |
| Ubuntu:24.04:LTS | qtwebkit-opensource-src | 5.212.0~alpha4-33, 0, 5.212.0~alpha4-33build1 |
| Ubuntu:16.04:LTS | qtwebkit-opensource-src | *, 0, * |
| Ubuntu:22.04:LTS | wpewebkit | 2.36.0-2ubuntu2, 2.34.6-1, 2.34.4-1 |
| Ubuntu:20.04:LTS | qtwebkit-opensource-src | 5.212.0~alpha4-1ubuntu1, *, * |
| Ubuntu:22.04:LTS | qtwebkit-opensource-src | 5.212.0~alpha4-12, 0, 5.212.0~alpha4-13 |
| Ubuntu:16.04:LTS | webkit2gtk | 2.18.4-0ubuntu0.16.04.1, 2.14.2-0ubuntu0.16.04.1, 2.14.3-0ubuntu0.16.04.1 |
| Ubuntu:18.04:LTS | qtwebkit-source | 2.3.2-0ubuntu13, 0 |
| Ubuntu:16.04:LTS | webkitgtk | 2.4.11-0ubuntu0.1, 2.4.10-0ubuntu1, 2.4.9-2ubuntu2 |
| Ubuntu:20.04:LTS | webkit2gtk | 2.28.1-1, 2.30.6-0ubuntu0.20.04.1, 2.26.3-1ubuntu2 |
Timeline
- Jan 26, 2021 VulnCheck KEV Exploitation
- Jan 26, 2021 PoC Published
- Feb 1, 2021 VulnCheck KEV Exploitation
- Feb 2, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 2, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Nov 3, 2021 CISA KEV Added
- Nov 3, 2021 VulnCheck KEV Exploitation
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-1871 third-party-advisory
- https://webkitgtk.org/security/WSA-2021-0003.html third-party-advisory
- https://ubuntu.com/security/notices/USN-4939-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-1871 third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog third-party-advisory