CVE-2026-75686: Adobe Connect | Improper Input Validation (CWE-20)
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.9%
Up from 0.6% on .
EPSS score, percentile 60.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.3 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- 12.11 and earlier
- 4.4 and earlier
Unaffected 12.11.1, 12.12; 4.5
Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 12.11 and earlier |
| Unaffected | 12.11.1, 12.12 |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | 4.4 and earlier |
| Unaffected | 4.5 |
Versions not listed are: unaffected.
Versions the record lists as unaffected: 12.11.1, 12.12, 4.5.
Source: CVE List, as of . About the data.
About this vulnerability
Adobe Connect is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
Summary: CVE record, as of .
- CISA has not added CVE-2026-75686 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
- The CVE record was published on 22 Sep 2026.
- The CVE record carries a CVSS v3.1 base score of 9.3 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.9% (percentile 60.2), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact total.
Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
Adobe Connect | Improper Input Validation (CWE-20)
Adobe Connect is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
Source: CVE List, as of . About the data.
Weakness
CWE-20
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
Known exploited Adobe vulnerabilities
- CVE-2026-48356: Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulnerability
- CVE-2026-71362: Adobe Commerce and Magento Incorrect Authorization Vulnerability
- CVE-2026-75650: Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
- CVE-2026-48282: Adobe ColdFusion Path Traversal Vulnerability
- CVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerability