ClosedPatched

Adobe Acrobat and Reader: Out-of-Bounds Write (CVE-2023-26369)

Adobe Acrobat and Reader

Adobe Acrobat and Reader contains an out-of-bounds write vulnerability that allows for code execution. Added to CISA KEV on 2023-09-14.

Why this severity: CVSS 7.8 (NVD), actively exploited (CISA KEV)

Started: Sep 14, 2023
Closed: Sep 14, 2023
CVE: CVE-2023-26369

Adobe
CISA KEV

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Updated Sep 14, 2023

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Sep 14, 2023
CISA added CVE-2023-26369 to the KEV catalog (due 2023-10-05).

Advisories3

Vendor advisory: Adobe Acrobat and ReaderAdobe
NVD: CVE-2023-26369NVD
CISA Known Exploited Vulnerabilities CatalogCISA · Sep 14, 2023

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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