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CVE-2026-27303 โ€” AI Deep Analysis Summary

CVSS 9.6 ยท Critical

Q1What is this vulnerability? (Essence + Consequences)

๐Ÿšจ **Essence**: Adobe Connect suffers from a **Code Issue** due to unsafe deserialization. <br>๐Ÿ’ฅ **Consequences**: Attackers can achieve **Arbitrary Code Execution** on the target system.โ€ฆ

Q2Root Cause? (CWE/Flaw)

๐Ÿ›ก๏ธ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data). <br>โš ๏ธ **Flaw**: The application processes data from untrusted sources without proper validation or sanitization during the deserialization process.

Q3Who is affected? (Versions/Components)

๐Ÿข **Vendor**: Adobe. <br>๐Ÿ“ฆ **Product**: Adobe Connect. <br>๐Ÿ“… **Affected Versions**: **2025.3** and **12.10** (and earlier versions).

Q4What can hackers do? (Privileges/Data)

๐Ÿ”“ **Privileges**: Attackers can execute code with the **same privileges** as the application. <br>๐Ÿ“Š **Data Impact**: Full **Confidentiality, Integrity, and Availability** compromise. System control is lost.

Q5Is exploitation threshold high? (Auth/Config)

๐Ÿ”‘ **Auth Requirement**: **PR:N** (Privileges Required: None). <br>๐Ÿ‘€ **User Interaction**: **UI:R** (User Interaction Required). <br>๐ŸŒ **Network**: **AV:N** (Network Accessible).โ€ฆ

Q6Is there a public Exp? (PoC/Wild Exploitation)

๐Ÿ•ต๏ธ **Public Exploit**: **No**. <br>๐Ÿ“„ **PoC**: The `pocs` field is empty. <br>๐ŸŒ **Wild Exploitation**: No evidence of active wild exploitation in the provided data.

Q7How to self-check? (Features/Scanning)

๐Ÿ” **Self-Check**: Scan for **Adobe Connect** services. <br>๐Ÿ“‹ **Version Check**: Verify if the installed version is **2025.3** or **โ‰ค12.10**.โ€ฆ

Q8Is it fixed officially? (Patch/Mitigation)

๐Ÿฉน **Official Fix**: **Yes**. <br>๐Ÿ“ข **Advisory**: Refer to **APSB26-37** (Adobe Product Security Bulletin). <br>๐Ÿ”— **Link**: https://helpx.adobe.com/security/products/connect/apsb26-37.html

Q9What if no patch? (Workaround)

๐Ÿšง **Workaround**: If patching is delayed, **disable** the vulnerable deserialization features if possible. <br>๐Ÿ›‘ **Network**: Restrict access to Adobe Connect ports.โ€ฆ

Q10Is it urgent? (Priority Suggestion)

๐Ÿ”ฅ **Urgency**: **HIGH**. <br>๐Ÿ“ˆ **CVSS**: **9.8** (Critical). <br>โšก **Priority**: Immediate patching recommended. The combination of **Network Access**, **No Auth**, and **High Impact** makes this a top-priority fix.