CVE-2026-81994
HIGHDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 23% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1321 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2019-0230 | Critical | 9.8 | 97% | - | - |
| CVE-2019-11358 | Medium | 6.1 | 87% | - | Fix |
| CVE-2020-7774 | High | 7.3 | 69% | - | Fix |
| CVE-2022-24760 | Critical | 10.0 | 49% | - | Fix |
| CVE-2022-39396 | Critical | 9.8 | 39% | - | Fix |
| CVE-2022-2564 | Critical | 9.8 | 33% | - | Fix |
Common questions
How do I fix CVE-2026-81994?
Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2026-81994 being actively exploited?
Not that we know of. CVE-2026-81994 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 23% of all scored CVEs.
How severe is CVE-2026-81994?
CVE-2026-81994 has a CVSS v3 base score of 8.2, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-81994 affect?
Published advisories record a fix for Adobe Acrobat 2020 (Windows application), Adobe Acrobat Pro (Windows application), Adobe Acrobat Reader (32-bit) (Windows application), Adobe Acrobat Reader (64-bit) (Windows application). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-10.