Microsoft Exchange Server SSRF (ProxyLogon), cited in 2026-05-16 § 5 deep dive Background as precedent for on-prem Exchange exploitation pattern
cve · CVE-2021-26855
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first 2026-05-16 → last 2026-06-27
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Entries about Microsoft Exchange Server SSRF (ProxyLogon), cited in 2026-05-16 § 5 deep dive Background as precedent for on-prem Exchange exploitation pattern
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