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Adobe Acrobat Reader CVE-2026-81973

| EUVDEUVD-2026-74104 HIGH
Use After Free (CWE-416)
2026-09-08 psirt@adobe.com GHSA-hcw8-hm94-22mx
7.8
CVSS 3.1 · Vendor: adobe
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Severity by source

Vendor (adobe) PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI
7.8 HIGH

Local file-open trigger (AV:L), no privilege or configuration prerequisite (PR:N/AC:L), mandatory user interaction (UI:R), full C/I/A impact upon successful UAF exploitation.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (adobe).

CVSS VectorVendor: adobe

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 08, 2026 - 21:58 vuln.today
CVE Published
Sep 08, 2026 - 21:18 nvd
HIGH 7.8

DescriptionCVE.org

Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

AnalysisAI

Use After Free in Adobe Acrobat Reader and Acrobat 2024 enables arbitrary code execution in the context of the current user when a victim opens a maliciously crafted PDF or document file. All versions through 26.002.21900 (continuous track) and 24.001.30383 (Classic 2024) are confirmed affected per EUVD-2026-74104. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a victim to actively open a maliciously crafted document file in Adobe Acrobat or Acrobat Reader - confirmed by UI:R in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) reflects high impact but a local, user-interaction-gated attack surface. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the patched release identified in Adobe Security Bulletin APSB26-141 (https://helpx.adobe.com/security/products/acrobat/apsb26-141.html); the exact fixed version numbers are not reproduced in the available input data and must be confirmed directly from the advisory. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all Acrobat Reader and Acrobat 2024 installations across the organization and confirm versions against the affected baseline (26.002.21900 continuous track, 24.001.30383 Classic 2024); issue a security advisory prohibiting staff from opening PDF files from untrusted or unexpected sources and directing them to report suspicious attachments; enable detailed logging of Acrobat process execution. …

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CVE-2026-81973 vulnerability details – vuln.today

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