VulnerabilityModified
CVE-2023-21758
Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
HIGH 7.5EPSS 92.5%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 92.5%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 92.53% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- microsoft/windows 10 · microsoft/windows 11 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
- Source
- secure@microsoft.com
EPSS 92.5% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.