CVE-2018-0956: microsoft windows_10
CVSS: 7.8v2.0HighModified
Published 12-04-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-0956 is a high (CVSS 7.8) vulnerability in microsoft windows_10. EPSS estimates a 13.69% chance of exploitation in the next 30 days, higher than 96.4% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
13.69%
0%100%
Medium · -0.25 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-04-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka "HTTP.sys Denial of Service Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
13.69%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
-0.25 pp
From 13.94% on 18-09-2026
18-09-202618-10-2026
EPSS score13.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft3 products
- windows_1032-bit Systems | Version 1511 for 32-bit Systems | Version 1511 for x64-based Systems | Version 1607 for 32-bit Systems | Version 1607 for x64-based Systems | Version 1703 for 32-bit Systems | Version 1703 for x64-based Systems | Version 1709 for 32-bit Systems | Version 1709 for x64-based Systems | x64-based Systems | na | 1511 | 1607 | 1703 | 1709
- windows 10 serversversion 1709 (Server Core Installation)
- windows_server_2016(Server Core installation) | na | 1709
1 vendor · 3 products
References
3 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0956X Refsource CONFIRMPatchVendor Advisory