Adobe Connect: SQL injection leading to arbitrary code execution
Summary
Adobe Connect is affected by an SQL injection vulnerability (CVE-2026-121908, CVSS 9.9, critical). An attacker with a low-privileged user account on the server can execute arbitrary code in the context of the current user, without user interaction. The scope is changed, so the impact can extend beyond the vulnerable component.
Affected
- Adobe Connect 12.12 and earlier (according to the CNA record; the bulletin table was not verified)
- Affected ranges per CNA record: 0 to 12.8, 12.9, 12.10, 12.11 and 12.12
- Platform: Windows (per Adobe bulletin APSB26-191)
- Note: Strix.ai lists versions up to 12.12 as affected, which should be checked against the bulletin
Fixed in
- Adobe Connect 12.8.a (for the 12.8 branch)
- Adobe Connect 12.9.a (for the 12.9 branch)
- Adobe Connect 12.10.f (for the 12.10 branch)
- Adobe Connect 12.11.i (for the 12.11 branch)
- Adobe Connect 12.12.a (for the 12.12 branch)
Workaround
Unknown. No vendor workaround has been identified for this CVE.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in bulletin APSB26-191.
- OffSeq lists the CVE as not known to be exploited as of 10 November 2026.
- No public proof of concept has been found so far. The record was published one day before this entry, so this may change quickly.
Our recommendation
- Check whether your Adobe Connect server is reachable from the internet, a DMZ or partner networks, and restrict access where possible.
- Patch to the fixed version for your branch as soon as possible, after confirming the version in the Adobe bulletin APSB26-191.
- Review user accounts, including guest and external participant accounts, and remove unused accounts.
- Monitor application and web server logs for unusual SQL errors or requests.
- Treat this as high priority for internet-facing or on-premises deployments.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-121908 (CNA: Adobe) www.cve.org
- Adobe Security Bulletin APSB26-191 www.adobe.com
- Strix.ai CVE-2026-121908 www.strix.ai
- ZDI November 2026 Security Update Review www.zerodayinitiative.com
- OffSeq Radar CVE-2026-121908 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, 23:24.
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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