CVE-2023-21720
Microsoft Edge (Chromium-based) Tampering Vulnerability
Microsoft Edge (Chromium-based) Tampering 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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Edge (Chromium-based) Tampering Vulnerability
Microsoft Edge (Chromium-based) Tampering Vulnerability
- Record
CVE-2023-21720- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C - Weakness
- CWE-126
- Updated
- 2026-11-02
EUVDEUVD-2023-25887
Microsoft Edge (Chromium-based) Tampering Vulnerability
- Record
EUVD-2023-25887- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rwj7-xp4r-5r27
Microsoft Edge (Chromium-based) Tampering Vulnerability
Microsoft Edge (Chromium-based) Tampering Vulnerability
- Record
GHSA-rwj7-xp4r-5r27- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
NVD
Microsoft Edge (Chromium-based) Tampering Vulnerability
- Record
CVE-2023-21720- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-21720 is a medium vulnerability (CVSS 5.3) in Microsoft Edge (chromium-based), published February 14, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.22%, the 69th percentile. No source names a fixed version.