Microsoft Internet Explorer 8 does not properly allocate and access memory, which allows remote attackers to execute arbitrary code via vec…

published 2011-10-12 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1993

cvss: 9.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 26.7%; EPSS 26.7% chance of exploitation in 30 days, percentile 98%
public exploits: 1; Exploit-DB

Microsoft Internet Explorer 8 does not properly allocate and access memory, which allows remote attackers to execute arbitrary code via vectors involving a "dereferenced memory address," aka "Select Element Remote Code Execution Vulnerability."

Patch / fix

links 1

docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-081 advisory

Timeline

2011-10-11 First public exploit (EDB-36209)
2011-10-12 Published

Exploit prediction

26.74% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-36209 Microsoft Internet Explorer 8 - Select Element Memory Corruption remote, 2011-10-11

CVSS scores

assigned by	version	score	vector
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2011/ms11-081
vendor-advisory, patch
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12697
vdb-entry, signature, tool-signature
securityfocus.com /bid/49964
vdb-entry, broken-link, third-party-advisory

Sources

CVE List CVE-2011-1999
NVD CVE-2011-1999

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.

Summary