CVE-2023-26369
Published: September 14, 2023
Official Description
Adobe Acrobat and Reader contains an out-of-bounds write vulnerability that allows for code execution.
CISA KEV Advisory
Adobe Acrobat and Reader Out-of-Bounds Write Vulnerability
Adobe Acrobat and Reader contains an out-of-bounds write vulnerability that allows for code execution.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Risk Analysis
This vulnerability in Adobe Acrobat and Reader is an out-of-bounds write flaw that can lead to code execution. Its high severity and confirmed exploitation in the wild (KEV) indicate an immediate need for attention, despite a low EPSS score.
Active exploitation of this vulnerability has been observed in the wild, as indicated by its inclusion in CISA's KEV catalog.
Users should update Adobe Acrobat and Reader to the latest patched versions to mitigate this code execution vulnerability. Regularly updating all software helps protect against known exploits.
Technical Analysis
CVE-2023-26369 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2023-26369 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-26369 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1