What is CVE-2026-27820?

CVE-2026-27820 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

Which CVE IDs does CVE-2026-27820 cover?

CVE-2026-27820 covers the following CVE IDs: CVE-2026-27820. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-27820Low

zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-27820 →