Microsoft Edge, Windows 11 and LiteLLM Hacked in Pwn2Own Berlin 2026

Cybersecuritynews •Abinaya • May 15, 2026

Pwn2Own Berlin 2026 opened with a surge of zero-day exploits targeting modern browsers, operating systems, and emerging AI platforms. On Day One alone, security researchers successfully hacked Microsoft Edge, Windows 11, and LiteLLM, earning a total of $523,000 for 24 unique vulnerabilities. The results highlight a growing reality that AI ecosystems and core enterprise technologies […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Pwn2Own Berlin 2026: Major Exploits Target Windows 11 and Microsoft Exchange During the Pwn2Own Berlin 2026 event, held from May 14 to 16, security researchers exploited numerous zero-day vulnerabilities, earning over $900,000 in cash prizes. On the first day, 24 unique vulnerabilities were discovered, including multiple exploits against Windows 11 and Microsoft Edge, totaling $523,000. On the second day, 15 additional vulnerabilities were exploited, including significant flaws in Microsoft Exchange, bringing the total to 39 vulnerabilities and $908,750 awarded. Notable achievements included Orange Tsai's complex exploit for Microsoft Exchange, earning him $200,000. The competition emphasizes ethical hacking and incentivizes the discovery of vulnerabilities in enterprise technologies and AI systems. Vendors have 90 days to patch the disclosed vulnerabilities. The event showcases the ongoing challenges in securing modern software and highlights the need for robust security measures. 19 sources 69

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Microsoft Edge, Windows 11 and LiteLLM Hacked in Pwn2Own Berlin 2026

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