Adobe Acrobat Reader Double Free CVE-2026-79907
CVE-2026-79907 Published on September 8, 2026
Acrobat Reader | Double Free (CWE-415)
Acrobat Reader is affected by a Double Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Vulnerability Analysis
CVE-2026-79907 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Double-free Vulnerability?
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
CVE-2026-79907 has been classified to as a Double-free vulnerability or weakness.
Products Associated with CVE-2026-79907
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Affected Versions
Adobe Acrobat:- Before and including 26.002.21900 is affected.
- Version 26.002.21901 is unaffected.
- Before and including 26.002.21900 is affected.
- Version 26.002.21901 is unaffected.
- Before and including 24.001.30383 is affected.
- Version 24.001.30429 is unaffected.