Bain Capital Ventures has led a $42 million Series A investment in Cogent Security, a six-month-old startup using AI agents to tackle one of cybersecurity's most stubborn problems: the gap between detecting vulnerabilities and actually fixing them. The round, which also included Greylock and Definition, brings total funding to $53 million and values the company at a significant premium for its early stage.

For Bain partner Enrique Salem, the former Symantec CEO who led the investment, this marks the culmination of a years-long relationship with founder Vineet Edupuganti. The cybersecurity veteran sees Cogent addressing a critical market failure: while attackers increasingly use AI to exploit vulnerabilities within minutes of disclosure, enterprises struggle to keep pace with the growing volume of threats. In 2025 alone, over 48,000 new common vulnerabilities and exposures were reported, representing a 162% increase from five years prior.

Cogent's approach is notably pragmatic—it doesn't replace existing security tools but sits on top of them, connecting to scanners, asset lists, and cloud security data. The company claims its AI agents can reduce the time high-risk vulnerabilities remain active by 97% on average. With dozens of Fortune 1000 customers already on board and plans to expand into broader security operations, Cogent represents a bet that specialized AI can finally bridge the remediation gap that has plagued enterprise security teams for years.