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CVE-2024-39425: Security vulnerability in AdobeARMHelper

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-14 · updated 2026-06-17
• Weakness: CWE-367

Description

Acrobat Reader versions 20.005.30636, 24.002.20965, 24.002.20964, 24.001.30123 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to privilege escalation. Exploitation of this issue require local low-privilege access to the affected system and attack complexity is high.

Affected products

• Adobe Acrobat for Edge: from 20.001.30005 before 20.005.30655; from 24.001.20604 before 24.001.30159 — fixed in 20.005.30655, 24.001.30159
• Adobe Acrobat DC: from 15.008.20082 before 24.002.21005 — fixed in 24.002.21005
• Adobe Acrobat Reader: from 20.001.3005 before 20.005.30655 — fixed in 20.005.30655
• Adobe Acrobat Reader: from 15.008.20082 before 24.002.21005 — fixed in 24.002.21005

How to fix

Upgrade to a fixed version: Adobe Acrobat for Edge 20.005.30655, 24.001.30159; Adobe Acrobat DC 24.002.21005; Adobe Acrobat Reader 20.005.30655; Adobe Acrobat Reader 24.002.21005. Check the vendor advisory for mitigations.

References

• https://helpx.adobe.com/security/products/acrobat/apsb24-57.html

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