Adobe Connect: SQL injection leading to arbitrary code execution
Summary
Adobe Connect contains an SQL injection flaw (CWE-89) that Adobe rates as critical with a CVSS score of 9.9. According to the CVE record, an attacker with low privileges can exploit it over the network without user interaction, which may lead to arbitrary code execution in the context of the current user, with high impact on confidentiality, integrity and availability. Because only low privileges are required, internal users with a valid account may be enough, so internal exposure matters as well as internet exposure.
Affected
- Adobe Connect 0 to 12.12 (per CVE record, affected versions up to and including 12.12)
- Platform: Windows (per Adobe bulletin APSB26-191)
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
- Fixed builds per Adobe bulletin APSB26-191 and CVE record
Workaround
Unknown. No vendor-documented workaround has been identified.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues addressed in APSB26-191.
- OffSeq lists this CVE as not known to be exploited; its evidence is rated thin.
- No public proof of concept was found in research. Exploit databases and CISA KEV were not verified.
Our recommendation
- Inventory all Adobe Connect servers and their exact build, and determine whether each is self-hosted or provided by a third party.
- Update self-hosted Connect servers to the fixed build for your branch (12.8.a, 12.9.a, 12.10.f, 12.11.i or 12.12.a) after testing, within the priority 2 window.
- If patching is not immediately possible, restrict access to Connect to trusted networks and accounts and review low-privilege accounts.
- Check application and database logs for injection-type errors, and confirm with your hosting provider whether hosted instances are patched.
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-2026-121898 www.cve.org
- Strix: CVE-2026-121898 www.strix.ai
- OffSeq Radar: CVE-2026-121898 radar.offseq.com
- Zero Day Initiative: November 2026 security update review www.zerodayinitiative.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, 23:27.
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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