CVE-2026-34659
Last modified
CVE-2026-34659 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. 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. EPSS estimates a 0.64% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Connect Desktop Application | <= 2025.8.157 |
| Adobe | Connect Desktop Application | 2025.9.15 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-34659?
How severe is CVE-2026-34659?
How do I fix CVE-2026-34659?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-34653Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4…8.7
- CVE-2026-34654Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4…5.3
- CVE-2026-34655Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4…4.8
- CVE-2026-34656Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4…4.3
- CVE-2026-34657CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.…5.5
- CVE-2026-34658Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4…4.8
- CVE-2026-3466Insufficient sanitization of dashboard dashlet title links i…5.4
- CVE-2026-34660Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are…9.3
- CVE-2026-34661Illustrator versions 29.8.6, 30.3 and earlier are affected b…7.8
- CVE-2026-34662Illustrator versions 29.8.6, 30.3 and earlier are affected b…5.5
- CVE-2026-34663Illustrator versions 29.8.6, 30.3 and earlier are affected b…5.5
- CVE-2026-34664Substance3D - Designer versions 15.1.0 and earlier are affec…6.3
Are you affected by CVE-2026-34659?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST