CVE-2021-26419
Scripting Engine Memory Corruption Vulnerability
7.5 High
Scripting Engine Memory Corruption Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
22.8%Up 22.4 points since May 12, 2021
What each source reports
CVE List Score used
Scripting Engine Memory Corruption Vulnerability
Scripting Engine Memory Corruption Vulnerability
- Record
CVE-2021-26419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13225
Scripting Engine Memory Corruption Vulnerability
- Record
EUVD-2021-13225- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4qh5-35r2-7932
Scripting Engine Memory Corruption Vulnerability
Scripting Engine Memory Corruption Vulnerability
- Record
GHSA-4qh5-35r2-7932- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-119, CWE-787
- Updated
- 2026-11-02
NVD
Scripting Engine Memory Corruption Vulnerability
- Record
CVE-2021-26419- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.6 High
AV:N/AC:H/Au:N/C:C/I:C/A:C - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26419 is a high vulnerability (CVSS 7.5) in Microsoft Internet Explorer 11, published May 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 22.8%, the 97th percentile. No source names a fixed version.