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CVE-2024-39420

HIGHCVSS 7/10EPSS 3.45%

Last modified

CVE-2024-39420 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 3.45% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7/10

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
3.45%

87.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AdobeAcrobat>= 20.001.30005, < 20.005.30655
AdobeAcrobat>= 24.001.20604, < 24.001.30159
AdobeAcrobat Dc>= 15.008.20082, < 24.002.21005
AdobeAcrobat Reader>= 20.001.3005, < 20.005.30655
AdobeAcrobat Reader Dc>= 15.008.20082, < 24.002.21005

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2024-39420?
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.
How severe is CVE-2024-39420?
CVE-2024-39420 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 3.45% probability of exploitation in the next 30 days.
How do I fix CVE-2024-39420?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-39420?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST