Home/CVE/Multiple integer overflows in the Microsoft (1) JScript 5.6 through 5.8 and (2) VBScript 5.6 through 5.8 scripting engin
CVE

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 engin

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.".

HIGH · CVSS 8.8 EPSS 0.27859
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules6 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

2
microsoft jscriptall versions
microsoft vbscriptall versions
◈

Sigma Hunt Rules

6
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productlowJScript Compiler Execution
producthighSuspicious Rundll32 Invoking Inline VBScript
producthighVBScript Payload Stored in Registry
productmediumRegistry Modification Attempt Via VBScript - PowerShell
productmediumRegistry Modification Attempt Via VBScript
productmediumNew BgInfo.EXE Custom VBScript Registry Configuration
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Apr 2011 · 06:55 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://osvdb.org/71774
http://secunia.com/advisories/44162
http://www.securityfocus.com/bid/47249
http://www.securitytracker.com/id?1025333
http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlUS Government Resource
http://www.vupen.com/english/advisories/2011/0949
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