Adobe Connect: SQL injection leading to arbitrary code execution
Summary
Adobe Connect contains an SQL injection vulnerability (CWE-89) that allows an authenticated low-privileged attacker to execute arbitrary code in the context of the current user. No user interaction is required, and the scope is changed, so the impact can extend beyond the vulnerable component. The CVSS 3.1 base score is 9.9 (Critical), and NVD analysis was still pending at publication.
Affected
- Adobe Connect 12.12 and earlier (Windows, according to bulletin APSB26-191)
- The CNA record lists affected ranges up to 12.8, 12.9, 12.10, 12.11 and 12.12, each with a fixed release.
- Desktop Application and Android app versions: Unknown.
Fixed in
- Adobe Connect 12.12.a
- Adobe Connect 12.11.i
- Adobe Connect 12.10.f
- Adobe Connect 12.9.a
- Adobe Connect 12.8.a
Workaround
Unknown. No vendor-verified workaround was identified; apply the vendor update.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in bulletin APSB26-191.
- No public proof of concept, Metasploit module or CISA KEV entry was found at the time of research.
- Exploitation requires a valid low-privileged account (PR:L).
Our recommendation
- Identify all Adobe Connect servers and versions, including desktop clients.
- Apply the fixed version for your branch from Adobe bulletin APSB26-191 as soon as possible.
- Limit access to the server to VPN or trusted networks until patched.
- Review and reduce user accounts, self-registration and guest access.
- Review logs for unusual database errors or unexpected account activity.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-191 www.adobe.com
- CVE Record CVE-2026-121896 www.cve.org
- Strix: CVE-2026-121896 www.strix.ai
- Zero Day Initiative: November 2026 security update review www.zerodayinitiative.com
- OffSeq Radar: CVE-2026-121896 radar.offseq.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 10 Nov 2026, 23:26.
Original description (NVD)
Adobe Connect is affected by an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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