CVE-2026-34659

CVE Enrichment

CVSS: 9.6 CRITICAL
EPSS: 0.64%
EPSS Percentile: 50.48%
CISA KEV: Not listed

Description

Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by a Deserialization of Untrusted Data 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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 13-May-2026 02:16
Last Modified: 27-Oct-2026 01:10
EPSS Date: 2026-11-03
CWE: CWE-502

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:R /
                            S:C /
                            C:H /
                            I:H /
                            A:H

CNA Products / Version Status

Adobe · Adobe Connect Desktop Application Source: CNA · [email protected]
Default status: unaffected

0 ≤ version ≤ 2025.9.15 (Win), 2025.8.157 (Mac) — affected (custom)
2026.3.125 (Win), 2026.01.39 (Mac) — unaffected (custom)
Adobe · Adobe Connect Source: CNA · [email protected]
Default status: unaffected

0 ≤ version ≤ 12.11 — affected (semver)
12.11.1 — unaffected (semver)

Affected Products / Versions

adobe / connect_desktop_application Source: NVD CPE · affected
Version / affected range: * · through (inclusive) 2025.8.157
cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:macos:*:*
adobe / connect_desktop_application Source: NVD CPE · affected
Version / affected range: 2025.9.15
cpe:2.3:a:adobe:connect_desktop_application:2025.9.15:*:*:*:*:windows:*:*

References

[email protected]

Last enrichment sync: 04-Nov-2026 00:34
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

It addresses two critical-severity flaws that could be exploited for arbitrary code execution (CVE-2026-34659, CVSS score of 9.6) and privilege escalation (CVE-2026-34660, CVSS score of 9.3). Adobe Patches 52 Vulnerabilities Across 10 Products

CVE (1)

Vendors (1)

Products (10)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.