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PatchSiren cyber security CVE debrief

CVE-2026-21319 Adobe CVE debrief

Adobe After Effects versions 25.6 and earlier contain an Out-of-bounds Read vulnerability. This vulnerability could lead to memory exposure if a victim opens a malicious file, requiring user interaction. The issue is an Out-of-bounds Read problem that could allow attackers to access sensitive information stored in memory. Users should be cautious when opening files from untrusted sources.

Vendor
Adobe
Product
After Effects
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-10
Original CVE updated
2026-08-28
Advisory published
2026-02-10
Advisory updated
2026-08-28

Who should care

Users of Adobe After Effects versions 25.6 and earlier should apply patches to prevent potential memory exposure. System administrators and security teams managing these versions should prioritize patching. IT operators and platform administrators for affected deployments should review and implement compensating controls if immediate patching is not feasible. Security teams should monitor for suspicious file openings and review compensating controls for exposed systems.

Technical summary

The vulnerability is an Out-of-bounds Read issue in Adobe After Effects versions 25.6 and earlier. This could lead to memory exposure if a victim opens a malicious file. The issue requires user interaction, specifically opening a malicious file, to potentially access sensitive information stored in memory. The vulnerability affects Adobe After Effects, a software used for visual effects, motion graphics, and compositing.

Defensive priority

Medium priority due to the need for user interaction.

Recommended defensive actions

  • Verify and apply vendor patches
  • Inventory affected systems
  • Monitor for suspicious file openings
  • Review compensating controls for exposed systems
  • Track exceptions and retest remediated assets
  • Check relevant monitoring, detection, and logs for exposed assets
  • Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. Further verification is recommended. Evidence limits suggest focusing on CVE and NVD for initial assessment. Affected product deployments should be inventoried for exposure review. Monitoring for suspicious file openings is advised. Additional verification tasks may be required based on specific environment configurations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21319 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21319

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

  • CVE-2026-21319 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21319

    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.