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54% of professional pentesters report having discovered a Zero-Day or N-Day vulnerability that had no existing public patch or advisory.

May 27, 2026

54% of professional pentesters report having discovered a Zero-Day or N-Day vulnerability that had no existing public patch or advisory. — This cybersecurity statistic was published by Cobalt in May 2026. It covers topics including Zero-Day, Vulnerability Discovery, Offensive Security, Penetration Testing. The original data appears in Pentester Profile Report . For the full methodology and detailed findings, refer to the original report.

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Published on 3/5/2026

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Frequently Asked Questions

What does this statistic say?

54% of professional pentesters report having discovered a Zero-Day or N-Day vulnerability that had no existing public patch or advisory. This data was published by Cobalt and covers Zero-Day, Vulnerability Discovery, Offensive Security, Penetration Testing.

Where does this data come from?

This statistic comes from Pentester Profile Report , published by Cobalt on May 27, 2026. You can view the original report at https://resource.cobalt.io/pentester-profile-report.

What cybersecurity topics does this cover?

This statistic relates to Zero-Day, Vulnerability Discovery, Offensive Security, Penetration Testing. Browse more statistics on Zero-Day or from Cobalt.

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