Vulnerability · Published Aug 14, 2024 · Assigned by adobe

CVE-2024-39420Acrobat Reader | Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)

High 7.0

In plain English

A high-severity security flaw in Acrobat Reader from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.5% (higher than 89% of all known vulnerabilities).

Severity (CVSS 3.1)7.0High
Exploit odds (30 days)3.5%top 10.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Acrobat Reader versions 20.005.30636, 24.002.21005, 24.001.30159, 20.005.30655, 24.002.20965, 24.002.20964, 24.001.30123, 24.003.20054 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to arbitrary code execution. This vulnerability arises when the timing of actions changes the state of a resource between the checking of a condition and the use of the resource, allowing an attacker to manipulate the resource in a harmful way. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products (as reported)

VendorProductVersions
Adobe Acrobat Reader 0 – through 24.003.20054

Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References