CVE-2011-1271

The JIT compiler in Microsoft .NET Framework 3.5 Gold and SP1, 3.5.1, and 4.0, when IsJITOptimizerDisabled is false, does not properly handle expressions related to null strings, which allows context-dependent attackers to bypass intended access restrictions, and consequently execute arbitrary code, in opportunistic circumstances by leveraging a crafted application, as demonstrated by (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka ".NET Framework JIT Optimization Vulnerability."

CVSS v3.1

7.7 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS v2.0

5.1 MEDIUMAV:N/AC:H/Au:N/C:P/I:P/A:P

EPSS

20.10% chance of exploitation in the next 30 days, 97th percentile

Published

2011-05-10

Updated

2024-10-17

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/35740

References

• CVE Record
• NVD entry

Related

• CVE-2011-1260
• CVE-2011-1276
• CVE-2011-1255
• CVE-2011-1350
• CVE-2011-1249
• CVE-2011-1398