CVE tracker — Exploitation, versions & score history

Scroll across the table to compare exploitation and severity.

Matching CVEs and exploitation evidence. CVSS measures reported severity. Unknown scores are not zero.
CVE / vulnerability	Exploitation	CVSS
CVE-2021-30807 Apple Multiple Products Memory Corruption Vulnerability Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	7.8High
CVE-2021-30762 Apple iOS WebKit Use-After-Free Vulnerability Apple iOS Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30761 Apple iOS WebKit Memory Corruption Vulnerability Apple iOS Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30713 Apple macOS Unspecified Vulnerability Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	7.8High
CVE-2021-30666 Apple iOS WebKit Buffer Overflow Vulnerability Apple iOS Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30665 Apple Multiple Products WebKit Memory Corruption Vulnerability Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30663 Apple Multiple Products WebKit Integer Overflow Vulnerability Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	7.8High
CVE-2021-30661 Apple Multiple Products WebKit Storage Use-After-Free Vulnerability Apple iOS and iPadOS, Apple Safari, Apple tvOS, Apple watchOS, Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30657 Apple macOS Unspecified Vulnerability Apple macOS Versions & vendor guidance →	Known exploitedCISA KEV	5.5Medium
CVE-2021-30633 Google Chromium Indexed DB API Use-After-Free Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	9.6Critical
CVE-2021-30632 Google Chromium V8 Out-of-Bounds Write Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30563 Google Chromium V8 Type Confusion Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30554 Google Chromium WebGL Use-After-Free Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30551 Google Chromium V8 Type Confusion Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-30533 Google Chromium PopupBlocker Security Bypass Vulnerability Google Chrome Versions & vendor guidance →	Known exploitedCISA KEV	6.5Medium
CVE-2021-30116 Unauthenticated credential leak and business logic flaw in Kaseya VSA <= v9.5.6 n/a n/a Reported fix guidance →	Known exploitedCISA KEV	10Critical
CVE-2021-29256 Arm Mali GPU Kernel Driver Use-After-Free Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-28799 Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync) QNAP Systems Inc. HBS 3, QNAP Systems Inc. HBS 2, QNAP Systems Inc. HBS 1.3 Reported fix guidance →	Known exploitedCISA KEV	10Critical
CVE-2021-28664 Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-28663 Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-28550 Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution Adobe Acrobat Reader Versions & vendor guidance →	Known exploitedCISA KEV	9.6Critical
CVE-2021-28310 Win32k Elevation of Privilege Vulnerability Microsoft Windows 10 Version 1803, Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows 10 Version 1909, Microsoft Windows Server, version 1909 (Server Core installation), Microsoft Windows 10 Version 2004, Microsoft Windows Server version 2004, Microsoft Windows 10 Version 20H2, Microsoft Windows Server version 20H2 Versions & vendor guidance →	Known exploitedCISA KEV	7.8High
CVE-2021-27878 Veritas Backup Exec Agent Command Execution Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.8High
CVE-2021-27877 Veritas Backup Exec Agent Improper Authentication Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.2High
CVE-2021-27876 Veritas Backup Exec Agent File Access Vulnerability n/a n/a Versions & vendor guidance →	Known exploitedCISA KEV	8.1High

Data sources, freshness & score definitions

The full downloaded KEV catalog is tracked, alongside CVEs found in monitored sources. This is not the entire CVE universe. CVE record enrichment rotates in bounded batches; missing fields remain unknown.

CISA KEV: checked 13 Nov 2026, 00:20 Jerusalem · 1779 records

CVE Program: checked 13 Nov 2026, 00:20 Jerusalem · 117 records · 3 records unavailable

FIRST EPSS: checked 13 Nov 2026, 00:20 Jerusalem · 2223 records

CVSS describes reported technical severity. EPSS estimates exploitation probability in the next 30 days. KEV inclusion records known exploitation, not whether your own systems are exposed.