Bulletin ID
Last updated on
Sep 8, 2026
Security update available for Adobe Acrobat Reader | APSB26-141
|
|
Date Published |
Priority |
|---|---|---|
|
APSB26-141 |
September 8, 2026 |
2 |
Summary
Adobe has released a security update for Adobe Acrobat and Reader for Windows and macOS. This update addresses critical, important, and moderate vulnerabilities that could result in arbitrary code execution, privilege escalation, arbitrary file system read, arbitrary file system write, memory exposure, and application denial-of-service.
Adobe is not aware of any exploits in the wild for any of the issues addressed in this update.
Affected Versions
For questions regarding Adobe Acrobat, please visit the Adobe Acrobat FAQ page.
For questions regarding Acrobat Reader, please visit the Acrobat Reader 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:
|
Track |
Updated Versions |
Platform |
Priority Rating |
Availability |
|
|
Adobe Acrobat |
Continuous |
26.002.21901 |
Windows and macOS |
2 |
|
|
Acrobat Reader |
Continuous |
26.002.21901 |
Windows and macOS |
2 |
|
|
Acrobat 2024 |
Classic 2024 |
24.001.30429 |
Windows and macOS |
2 |
Vulnerability Details
| Vulnerability Category | Vulnerability Impact | Severity | CVSS base score | CVSS vector | CVE Number |
Incorrect Authorization (CWE-863) |
Privilege escalation |
Critical |
8.8 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
CVE-2026-81996 |
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321) |
Arbitrary file system read |
Critical |
8.2 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
CVE-2026-81994 |
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-2026-81983 |
Double Free (CWE-415) |
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-2026-79907 |
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-2026-79908 |
Use After Free (CWE-416) |
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-2026-79909 |
Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843) |
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-2026-80161 |
Use After Free (CWE-416) |
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-2026-81973 |
Use After Free (CWE-416) |
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-2026-81975 |
Use After Free (CWE-416) |
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-2026-81976 |
Heap-based Buffer Overflow (CWE-122) |
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-2026-81992 |
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-2026-81979 |
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-2026-81980 |
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-2026-81981 |
Use After Free (CWE-416) |
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-2026-81985 |
Use After Free (CWE-416) |
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-2026-81986 |
Integer Overflow or Wraparound (CWE-190) |
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-2026-81987 |
Use After Free (CWE-416) |
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-2026-81988 |
Use After Free (CWE-416) |
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-2026-81989 |
Use After Free (CWE-416) |
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-2026-81990 |
Incorrect Authorization (CWE-863) |
Arbitrary file system write |
Important |
6.3 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N |
CVE-2026-81997 |
Out-of-bounds Read (CWE-125) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81982 |
Uncontrolled Resource Consumption (CWE-400) |
Application denial-of-service |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
CVE-2026-82001 |
Out-of-bounds Read (CWE-125) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-80160 |
Use After Free (CWE-416) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-80162 |
Integer Underflow (Wrap or Wraparound) (CWE-191) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81977 |
Out-of-bounds Read (CWE-125) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81978 |
Heap-based Buffer Overflow (CWE-122) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81993 |
Use After Free (CWE-416) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81984 |
Out-of-bounds Read (CWE-125) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-81991 |
Out-of-bounds Read (CWE-125) |
Memory exposure |
Important |
5.5 |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-79910 |
Untrusted Search Path (CWE-426) |
Privilege escalation |
Critical |
4.0 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N |
CVE-2026-80159 |
Acknowledgements
Adobe would like to thank the following researchers for reporting these issues and for working with Adobe to help protect our customers:
- Andrea Intilangelo — CVE-2026-80159
- OmriD-Remedio (omrid) — CVE-2026-81983, CVE-2026-81982
- Jony (jony_juice) — CVE-2026-79907, CVE-2026-79908
- Mark Vincent Yason (markyason.github.io) working with Trend Micro Zero Day Initiative — CVE-2026-80161, CVE-2026-81973, CVE-2026-81990, CVE-2026-79909
- Anonymous working with Trend Micro Zero Day Initiative — CVE-2026-81975, CVE-2026-81976, CVE-2026-81981, CVE-2026-81985, CVE-2026-81986, CVE-2026-81988, CVE-2026-81989, CVE-2026-81977, CVE-2026-81984, CVE-2026-81991
- Ame (raincandy_u) — CVE-2026-81979
- NoE9ybCAT (qtuvteqhlv) — CVE-2026-81980
- Brandon Evans of Trend Micro Zero Day Initiative — CVE-2026-81987
- NURIHAN KIM (HanTul) working with Trend Micro Zero Day Initiative — CVE-2026-80160, CVE-2026-80162, CVE-2026-81978
- Kiwan Ko working with TrendAI Zero Day Initiative — CVE-2026-79910
Revisions:
- June 10, 2026 - Updated download center link.
- June 12, 2026 - Added CVE-2026-47965.
- June 15, 2026 - Updated researcher credit for CVE-2026-47952.
- July 17, 2026 - Added CVE-2026-48373.
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.
