Summary
generated automatically from NVD dataCVE-2026-34659 is a deserialization of untrusted data flaw (CWE-502) in Adobe Connect, affecting versions 2025.9.15, 2025.8.157 and earlier. A successful attack could let an attacker run arbitrary code in the context of the current user, but it requires the victim to visit a maliciously crafted URL or interact with a compromised web page. The scope is changed, and the flaw is rated CRITICAL with a CVSS v3.1 score of 9.6.
NVD 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.
EPSS · FIRST.org
1.9%probability of exploitation in the next 30 days
Higher than 79% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-18, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 12 mai 2026
- Updated
- 28 août 2026
- Status
- Analyzed
- Source
- psirt@adobe.com
Affected products
Weaknesses (CWE)
References (1)
Similar CVEs
Other vulnerabilities of type CWE-502
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