Critical severity9.8NVD Advisory· Published Jan 23, 2020· Updated Jun 17, 2026
CVE-2019-16517
CVE-2019-16517
Description
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a CORS misconfiguration, which reflected the Origin provided by incoming requests. This allowed JavaScript running on any domain to interact with the server APIs and perform administrative actions, without the victim's knowledge.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:connectwise:control:19.3.25270.7185:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:connectwise:control:19.3.25270.7185:*:*:*:*:*:*:*
- (no CPE)range: <19.3.25270.7185
- ConnectWise/Controldescription
Patches
Vulnerability mechanics
References
5- blog.huntresslabs.com/validating-the-bishop-fox-findings-in-connectwise-control-9155eec36a34nvdExploitThird Party Advisory
- know.bishopfox.com/advisories/connectwise-controlnvdExploitThird Party Advisory
- know.bishopfox.com/advisoriesnvdThird Party Advisory
- www.crn.com/news/managed-services/connectwise-control-msp-security-vulnerabilities-are-severe-bishop-foxnvdThird Party Advisory
- www.crn.com/slide-shows/managed-services/connectwise-control-attack-chain-exploit-20-questions-for-security-researcher-bishop-foxnvdThird Party Advisory
News mentions
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