Heap-based Buffer Overflow in Acrobat Reader by Adobe
CVE-2026-48373

7.8HIGH

Key Information:

Vendor

Adobe
Status
Acrobat Reader
Vendor
CVE Published:
17 July 2026

What is CVE-2026-48373?

Adobe Acrobat Reader is susceptible to a heap-based buffer overflow flaw that may permit attackers to execute arbitrary code within the user's environment. This vulnerability necessitates user involvement, as it can only be triggered when a user opens a specially crafted malicious file. Users are advised to remain cautious and ensure they only open files from trusted sources.

Affected Version(s)

Acrobat Reader 0 <= 24.001.30365

Acrobat Reader 0 <= 24.001.30365

Acrobat Reader 0 <= 26.001.21651

References

https://helpx.adobe.com/security/products/acrobat/apsb26-...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.