CVE-2026-34659 json
Adobe Connect | Deserialization of Untrusted Data (CWE-502)
published 2026-05-12 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-29740
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Adobe Adobe Connect 12.11.1
- Adobe Adobe Connect Desktop Application 2026.3.125 (Win), 2026.01.39 (Mac)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Affected products
- Adobe Adobe Connect
- Adobe Adobe Connect Desktop Application
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
helpx.adobe.com
/security/products/connect/apsb26-50.html
vendor-advisory
Sources
- CVE List CVE-2026-34659
- NVD CVE-2026-34659
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