Multiple serious vulnerabilities have been found in Adobe products. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code or obtain sensitive information.

Below is a complete list of vulnerabilities

1. Use-after-free, buffer overflow, memory leak and corruption vulnerabilities can be exploited remotely via an unknown vectors;
2. An unknown vulnerability can be exploited remotely via vectors related to Javascript API;
3. Improper null-pointer dereference can be exploited remotely via an unknown vectors;
4. Improper XML handling can be exploited remotely via an unknown vectors.

NB: At this moment Adobe just reserved CVE numbers for this vulnerabilities. Information can be changed soon.

Adobe Reader XI versions earlier than 11.0.11
Adobe Reader X versions earlier than 10.1.14
Adobe Acrobat XI versions earlier than 11.0.11
Adobe Acrobat X versions earlier than 10.1.14

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The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/38344

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.