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TI-2024-26370 Aliases CVE-2024-39420GHSA-rx7q-7v9g-75wg

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

Priority LOW 39CWE-367Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03492 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAcrobat Readerup to 24.003.20054—No fix listedCNA
  • Acrobat Reader VendorAdobe Affected up to 24.003.20054 Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*20.001.30005 to before 20.005.30655; 24.001.20604 to before 24.001.30159VulnerableAdobe
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*15.008.20082 to before 24.002.21005VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*20.001.3005 to before 20.005.30655VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*15.008.20082 to before 24.002.21005VulnerableAdobe
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* Versions 20.001.30005 to before 20.005.30655; 24.001.20604 to before 24.001.30159 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* Versions 15.008.20082 to before 24.002.21005 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:* Versions 20.001.3005 to before 20.005.30655 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* Versions 15.008.20082 to before 24.002.21005 Vulnerable ·Adobe
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-39420
  2. 2026-10-03 Alias added: GHSA-rx7q-7v9g-75wg

References

Advisory 1

  • TI-2014-00524 Adobe Reader and Acrobat 10.x before 10.1.11 and 11.x before 11.0.08 on Windows allow… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02915 Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02389 Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2011-02156 Unspecified vulnerability in the U3D component in Adobe Reader and Acrobat 10.1.1 and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-09626 Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution KEVCVSS 3.1HIGH 8.8
  • TI-2021-04123 Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution KEVCVSS 3.1HIGH 8.8
See all 1413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences