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CVE-2023-21730

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

7.8 High

CVE-2023-21730 is a high vulnerability (CVSS 7.8) in Microsoft Windows 10 Version 1507, published January 10, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.

What does this mean?
Severity
7.8 HighCVSS 3.1, CVE List
Exploit chance
0.49%EPSS, 42nd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.49%Down 0.4 points since Jan 11, 2023
90%50%10%1%

Affected products

Show 22 moreShow less

What each source reports

CVE List Score used7.8

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

Record
CVE-2023-21730
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weakness
CWE-190
Updated
2026-11-02
EUVDEUVD-2023-258977.8

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

Record
EUVD-2023-25897
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-6gf9-c5hr-xc9r7.8

Microsoft Cryptographic Services Elevation of Privilege Vulnerability. This CVE ID is unique from...

Microsoft Cryptographic Services Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2023-21551, CVE-2023-21561.

Record
GHSA-6gf9-c5hr-xc9r
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-269
Updated
2026-11-02
NVD7.8

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

Record
CVE-2023-21730
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-190, CWE-269
Updated
2026-11-02

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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