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PatchSiren cyber security CVE debrief

CVE-2026-47955 Adobe CVE debrief

CVE-2026-47955 is a Use After Free vulnerability affecting Adobe Acrobat Reader versions 24.001.30365, 26.001.21651, and earlier. This vulnerability could result in arbitrary code execution in the context of the current user, requiring user interaction to open a malicious file.

Vendor
Adobe
Product
Acrobat Reader
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-08-28
Advisory published
2026-06-09
Advisory updated
2026-08-28

Who should care

Users of Adobe Acrobat Reader versions 24.001.30365, 26.001.21651, and earlier should apply patches to prevent potential arbitrary code execution.

Technical summary

The vulnerability, tracked as CVE-2026-47955, is a Use After Free issue within Adobe Acrobat Reader. Successful exploitation requires user interaction, specifically opening a malicious file. The CVSS score for this vulnerability is 7.8, indicating a High severity level.

Defensive priority

High

Recommended defensive actions

  • Apply patches provided by Adobe for Acrobat Reader versions 24.001.30365, 26.001.21651, and earlier.
  • Ensure users do not open malicious files.

Evidence notes

Evidence from the NVD indicates that CVE-2026-47955 has a CVSS vector of CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, with weaknesses including CWE-416.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47955 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47955

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47955 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47955

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.