Is CVE-2026-16527 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-16527?

CVE-2026-16527 has a CVSS v3 severity of HIGH (7.3).

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CVE-2026-16527

Description

An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.