CVE-2026-63077: Critical unauthenticated remote code execution in ...

Web discovery (articles for new exploits & KEV entries)Jul 29, 2026 · 16:19 UTC (Jul 29, 2026)

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On July 27, 2026, JetBrains published a security advisory for CVE-2026-63077, a critical unauthenticated vulnerability affecting all versions of TeamCity On-Premises. The issue is classified as deserialization of untrusted data and has a CVSS score of 9.8.

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CVEs: CVE-2026-63077

Tags: cve-2026-63077 vulnerability

Vulnerabilities mentioned

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CVE	Vulnerability	CVSS	EPSS	Signals	Published
CVE-2026-63077	Unauthenticated Deserialization RCE in JetBrains TeamCity On-Premises	9.8	94%	KEVRansomwarePoC	Jul 27, 2026 KEV Aug 5, 2026

From the original article

On July 27, 2026, JetBrains published a security advisory for CVE-2026-63077, a critical unauthenticated vulnerability affecting all versions of TeamCity On-Premises. The issue is classified as deserialization of untrusted data and has a CVSS score of 9. 8.

Web discovery (articles for new exploits & KEV entries)

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