Headline
CVE-2023-26369: Adobe Security Bulletin
Acrobat Reader versions 23.003.20284 (and earlier), 20.005.30516 (and earlier) and 20.005.30514 (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 that a victim must open a malicious file.
Security update available for Adobe Acrobat and Reader | APSB23-34
Bulletin ID
Date Published
Priority
APSB23-34
September 12, 2023
1
Summary
Adobe has released a security update for Adobe Acrobat and Reader for Windows and macOS. This update addresses a critical vulnerability. Successful exploitation could lead to arbitrary code execution .
Adobe is aware that CVE-2023-26369 has been exploited in the wild in limited attacks targeting Adobe Acrobat and Reader.
Affected Versions
Product
Track
Affected Versions
Platform
Acrobat DC
Continuous
23.003.20284 and earlier versions
Windows & macOS
Acrobat Reader DC
Continuous
23.003.20284 and earlier versions
Windows & macOS
Acrobat 2020
Classic 2020
20.005.30516 (Mac)
20.005.30514 (Win)
and earlier versions
Windows & macOS
Acrobat Reader 2020
Classic 2020
20.005.30516 (Mac)
20.005.30514 (Win)
and earlier versions
Windows & macOS
For questions regarding Acrobat DC, please visit the Acrobat DC FAQ page.
For questions regarding Acrobat Reader DC, please visit the Acrobat Reader DC FAQ page.
Solution
Adobe recommends users update their software installations to the latest versions by following the instructions below.
The latest product versions are available to end users via one of the following methods:
Users can update their product installations manually by choosing Help > Check for Updates.
The products will update automatically, without requiring user intervention, when updates are detected.
The full Acrobat Reader installer can be downloaded from the Acrobat Reader Download Center.
For IT administrators (managed environments):
Refer to the specific release note version for links to installers.
Install updates via your preferred methodology, such as AIP-GPO, bootstrapper, SCUP/SCCM (Windows), or on macOS, Apple Remote Desktop and SSH.
Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:
Product
Track
Updated Versions
Platform
Priority Rating
Availability
Acrobat DC
Continuous
23.006.20320
Windows and macOS
1
Release Notes
Acrobat Reader DC
Continuous
23.006.20320
Windows and macOS
1
Release Notes
Acrobat 2020
Classic 2020
20.005.30524
Windows and macOS
1
Release Notes
Acrobat Reader 2020
Classic 2020
20.005.30524
Windows and macOS
1
Release Notes
Vulnerability Details
Vulnerability Category
Vulnerability Impact
Severity
CVSS base score
CVSS vector
CVE Number
Out-of-bounds Write (CWE-787)
Arbitrary code execution
Critical
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2023-26369
NOTE: Adobe has a private, invite-only, bug bounty program with HackerOne. If you are interested in working with Adobe as an external security researcher, please fill out this form for next steps.
NOTE: Adobe has a private, invite-only, bug bounty program with HackerOne. If you are interested in working with Adobe as an external security researcher, please fill out this form for next steps.
For more information, visit https://helpx.adobe.com/security.html, or email [email protected].
Related news
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a high-severity flaw in Adobe Acrobat Reader to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. Tracked as CVE-2023-21608 (CVSS score: 7.8), the vulnerability has been described as a use-after-free bug that can be exploited to achieve remote code execution (RCE) with the
Adobe's Patch Tuesday update for September 2023 comes with a patch for a critical actively exploited security flaw in Acrobat and Reader that could permit an attacker to execute malicious code on susceptible systems. The vulnerability, tracked as CVE-2023-26369, is rated 7.8 for severity on the CVSS scoring system and impacts both Windows and macOS versions of Acrobat DC, Acrobat Reader DC,
Microsoft today issued software updates to fix at least five dozen security holes in Windows and supported software, including patches for two zero-day vulnerabilities that are already being exploited. Also, Adobe, Google Chrome and Apple iOS users may have their own zero-day patching to do.