Integer overflow in Microsoft Jscript
CVE-2011-0663
Multiple integer overflows in the Microsoft (1) JScript 5.6 through 5.8 and (2) VBScript 5.6 through 5.8 scripting engines allow remote attackers to execute arbitrary code via a crafted web page, aka "Scripting Memory Reallocation Vulnerability."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.262 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.262 · newest: 0.262 · change: 0.000
Affected products
- Microsoft Jscript — versions 5.6, 5.7, 5.8
- Microsoft Vbscript — versions 5.6, 5.7, 5.8
- Microsoft Windows 2003 Server
- Microsoft Windows 7
- Microsoft Windows Server 2003
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Vista
- Microsoft Windows Xp
Weakness classification (CWE)
References
- www.vupen.com/english/advisories/2011/0949 (vdb-entry)
- osvdb.org/71774 (vdb-entry)
- www.us-cert.gov/cas/techalerts/TA11-102A.html (US Government Resource, third-party-advisory)
- www.securitytracker.com/id (vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-031 (vendor-advisory)
- www.securityfocus.com/bid/47249 (vdb-entry)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:12673 (signature, vdb-entry)
- secunia.com/advisories/44162 (third-party-advisory)
Frequently asked questions
- What is CVE-2011-0663?
- CVE-2011-0663 is a high-severity vulnerability in Microsoft Jscript, classified under CWE-189. CVSS score: 8.8/10. Published 2011-04-13.
- How severe is CVE-2011-0663?
- High severity. CVSS v3 base score is 8.8 out of 10.