Acrobat Reader | Heap-based Buffer Overflow (CWE-122)
Summary
| CVE | CVE-2026-81993 |
|---|---|
| State | PUBLISHED |
| Assigner | adobe |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-08 21:18:46 UTC |
| Updated | 2026-09-10 13:26:55 UTC |
| Description | Acrobat Reader is affected by a Heap-based Buffer Overflow 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS: 0.001910000 probability, percentile 0.087920000 (date 2026-09-10)
Problem Types: CWE-122 | CWE-122 Heap-based Buffer Overflow (CWE-122)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| 3.1 | CNA | CVSS | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Adobe | Acrobat | All | All | All | All |
| Application | Adobe | Acrobat Dc | All | All | All | All |
| Application | Adobe | Acrobat Reader Dc | All | All | All | All |
| Operating System | Apple | Macos | - | All | All | All |
| Operating System | Microsoft | Windows | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Adobe | Adobe Acrobat | affected 26.002.21900 custom | Not specified |
| CNA | Adobe | Adobe Acrobat | unaffected 26.002.21901 custom | Not specified |
| CNA | Adobe | Acrobat Reader | affected 26.002.21900 custom | Not specified |
| CNA | Adobe | Acrobat Reader | unaffected 26.002.21901 custom | Not specified |
| CNA | Adobe | Acrobat 2024 | affected 24.001.30383 custom | Not specified |
| CNA | Adobe | Acrobat 2024 | unaffected 24.001.30429 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| helpx.adobe.com/security/products/acrobat/apsb26-141.html | [email protected] | helpx.adobe.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.