CVE-2021-1705
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
Microsoft Edge (HTML-based) 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
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
- Record
CVE-2021-1705- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-7172
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
- Record
EUVD-2021-7172- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9q66-j74h-5mq3
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
- Record
GHSA-9q66-j74h-5mq3- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
NVD
Microsoft Edge (HTML-based) Memory Corruption Vulnerability
- Record
CVE-2021-1705- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N - 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 - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-1705 is a medium vulnerability (CVSS 4.2) in Microsoft Edge, published January 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.07%, the 81st percentile. No source names a fixed version.