RCE in Microsoft Windows 7
CVE-2015-1635
HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys Remote Code Execution Vulnerability."
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 1.000 (100.0th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-034 (vendor-advisory, Patch, Vendor Advisory)
- www.exploit-db.com/exploits/36773/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.osvdb.org/120629 (vdb-entry, Broken Link)
- www.securitytracker.com/id/1032109 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.securityfocus.com/bid/74013 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.exploit-db.com/exploits/36776/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- packetstormsecurity.com/files/131463/Microsoft-Windows-HTTP.sys-Proof-Of-Concep… (Exploit, VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2015-1635?
- CVE-2015-1635 is a critical-severity vulnerability in Microsoft Windows 7, classified under Code Injection. CVSS score: 9.8/10. Published 2015-04-14.
- How severe is CVE-2015-1635?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2015-1635 known to be exploited?
- Yes. CVE-2015-1635 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-10), indicating it is being actively exploited. 76 public proof-of-concept repositories are indexed.