CVE-2012-2523 in the critical feed json
Integer overflow in Microsoft Internet Explorer 8 and 9, JScript 5.8, and VBScript 5.8 on 64-bit platforms allows remote attackers to execu…
published 2012-08-15 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2509
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 22.2%
- EPSS 22.2% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
Integer overflow in Microsoft Internet Explorer 8 and 9, JScript 5.8, and VBScript 5.8 on 64-bit platforms allows remote attackers to execute arbitrary code by leveraging an incorrect size calculation during object copying, aka "JavaScript Integer Overflow Remote Code Execution Vulnerability."
Exploit prediction
22.18% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-189 Numeric Errors
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2012/ms12-052
vendor-advisory
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2012/ms12-056
vendor-advisory
-
us-cert.gov
/cas/techalerts/TA12-227A.html
third-party-advisory, us-government-resource
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15790
vdb-entry, signature
Sources
- CVE List CVE-2012-2523
- NVD CVE-2012-2523
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.