CVE-2026-21357

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write4 documents4 sources
Severity
7.8HIGH
EPSS
0.0%
top 99.01%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Adobe IndesignAdobe Indesign Desktop
Timeline
PublishedFeb 10

Description

InDesign Desktop versions 21.1, 20.5.1 and earlier are affected by a Heap-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 must open a malicious file.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5adobe/indesign_desktop20.5.1
▶NVDadobe/indesign21.0 — 21.2+1

🔴Vulnerability Details

2
GHSA
GHSA-r8mq-23vx-xrgv: InDesign Desktop versions 21↗2026-02-10
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CVEList
InDesign Desktop | Heap-based Buffer Overflow (CWE-122)↗2026-02-10
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🕵️Threat Intelligence

1
Wiz
CVE-2026-21357 Impact, Exploitability, and Mitigation Steps | Wiz↗
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