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CVE-2023-21700

Windows iSCSI Discovery Service Denial of Service Vulnerability

7.5 High

Windows iSCSI Discovery Service Denial of Service Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.65%Up 0.8 points since Feb 15, 2023
90%50%10%1%

What each source reports

CVE List Score used7.5

Windows iSCSI Discovery Service Denial of Service Vulnerability

Windows iSCSI Discovery Service Denial of Service Vulnerability

Record
CVE-2023-21700
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Weakness
CWE-476
Updated
2026-11-02
EUVDEUVD-2023-258677.5

Windows iSCSI Discovery Service Denial of Service Vulnerability

Record
EUVD-2023-25867
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Updated
2026-11-02
GitHub AdvisoriesGHSA-p5xv-pc99-whmw7.5

Windows iSCSI Discovery Service Denial of Service Vulnerability

Windows iSCSI Discovery Service Denial of Service Vulnerability

Record
GHSA-p5xv-pc99-whmw
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
NVD7.5

Windows iSCSI Discovery Service Denial of Service Vulnerability

Record
CVE-2023-21700
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

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

In short

CVE-2023-21700 is a high vulnerability (CVSS 7.5) in Microsoft Windows 10 Version 1507, published February 14, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.65%, the 76th percentile. No source names a fixed version.

References

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