What is CVE-2026-34643?

CVE-2026-34643 is a high-severity vulnerability in Adobe After Effects, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-12.

How severe is CVE-2026-34643?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Adobe After Effects

CVE-2026-34643

After Effects versions 26.0, 25.6.4 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Adobe After Effects — versions 0
Adobe After_effects — versions 26.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

psirt@adobe.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34643?: CVE-2026-34643 is a high-severity vulnerability in Adobe After Effects, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2026-05-12.
How severe is CVE-2026-34643?: High severity. CVSS v3 base score is 7.8 out of 10.