Cyber Resilience

CVE-2026-34690

High

Published: 12 May 2026

Published
12 May 2026
Modified
13 May 2026
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0001 0.9th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-34690 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Adobe After Effects. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 0.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

After Effects versions 26.0, 25.6.4 and earlier are affected by a Stack-based Buffer Overflow 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…

more

must open a malicious file.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1204.002 Malicious File Execution
An adversary may rely upon a user opening a malicious file in order to gain execution.
Why these techniques?

Stack buffer overflow in desktop app enables arbitrary code execution via malicious file opened by user (T1204.002), directly mapping to client-side exploitation (T1203).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-21318Same product: Adobe After Effects
CVE-2026-21329Same product: Adobe After Effects
CVE-2026-21351Same product: Adobe After Effects
CVE-2026-21323Same product: Adobe After Effects
CVE-2026-21328Same product: Adobe After Effects
CVE-2026-21330Same product: Adobe After Effects
CVE-2026-21326Same product: Adobe After Effects
CVE-2026-21321Same product: Adobe After Effects
CVE-2026-21325Same product: Adobe After Effects
CVE-2026-21320Same product: Adobe After Effects

Affected Assets

adobe
after effects
≤ 25.6.5 · 26.0 — 26.2

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References