Detections
Analytics
Adobe Reader < 26.002.21901 Multiple Vulnerabilities (APSB26-141)
medium Nessus Plugin ID 343841
Language:
Synopsis
The version of Adobe Reader installed on the remote Windows host is affected by multiple vulnerabilities.Description
The version of Adobe Reader installed on the remote Windows host is a version prior to 26.002.21901. It is, therefore, affected by multiple vulnerabilities.- Acrobat Reader is affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope.
Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed. (CVE-2026-81994)
- Acrobat Reader is affected by a Double Free 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. (CVE-2026-79907)
- Acrobat Reader is 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. (CVE-2026-79908, CVE-2026-81979, CVE-2026-81980, CVE-2026-81981, CVE-2026-81983)
- Acrobat Reader is affected by a Use After Free 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. (CVE-2026-79909, CVE-2026-81973, CVE-2026-81975, CVE-2026-81976, CVE-2026-81985, CVE-2026-81986, CVE-2026-81988, CVE-2026-81989, CVE-2026-81990)
- Acrobat Reader is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information.
Exploitation of this issue requires user interaction in that a victim must open a malicious file.
(CVE-2026-79910, CVE-2026-80160, CVE-2026-81978, CVE-2026-81982, CVE-2026-81991)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Adobe Reader version 26.002.21901 or later.See Also
https://helpx.adobe.com/security/products/acrobat/apsb26-141.html
Plugin Details
Severity: Medium
ID: 343841
File Name: adobe_reader_apsb26-141.nasl
Version: 1.4
Type: Local
Agent: windows
Family: Windows
Published: 9/8/2026
Updated: 9/22/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.41
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N
CVSS Score Source: CVE-2026-81994
CVSS v3
Risk Factor: Medium
Base Score: 6.3
Temporal Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:adobe:acrobat_reader
Required KB Items: SMB/Registry/Enumerated, installed_sw/Adobe Reader
Exploit Ease: No known exploits are available
Patch Publication Date: 9/8/2026
Vulnerability Publication Date: 9/8/2026
Reference Information
CVE: CVE-2026-79907, CVE-2026-79908, CVE-2026-79909, CVE-2026-79910, CVE-2026-80159, CVE-2026-80160, CVE-2026-80161, CVE-2026-80162, CVE-2026-81973, CVE-2026-81975, CVE-2026-81976, CVE-2026-81977, CVE-2026-81978, CVE-2026-81979, CVE-2026-81980, CVE-2026-81981, CVE-2026-81982, CVE-2026-81983, CVE-2026-81984, CVE-2026-81985, CVE-2026-81986, CVE-2026-81987, CVE-2026-81988, CVE-2026-81989, CVE-2026-81990, CVE-2026-81991, CVE-2026-81992, CVE-2026-81993, CVE-2026-81994, CVE-2026-81996, CVE-2026-81997, CVE-2026-82001