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Exploited Critical JSON CVEs

1 CVE, 1 protected by Waratek

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Overview 1 match · 0 CISA KEV · 0 EPSS ≥ 0.5

1match 0CISA KEV0.0% 0EPSS ≥ 0.50.0%

Protected by Waratek 1 100.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0%

Critical 1 100.0% High 0 0.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%

blocked by ARMR today 1 100.0% partly blocked 0 0.0% not blocked 0 0.0% not established 0 0.0% unrecorded 0 0.0%

Exploited 1 100.0% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 0 0.0%

split by StatusSeverityProtectionExploit maturity peak 1 / month

Jul 261 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1

Jul 26

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CVE	Severity	Published▾	Status	Exploitation	Description
CVE-2026-16723	Critical	2026-07-23	Protected by Waratek	Exploited	A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson's stock default configuration — no AutoType enablement required, no classpath gadget required.

CVE

Severity

Published▾

Status

Exploitation

Description

CVE-2026-16723

Critical

2026-07-23

Protected by Waratek

Exploited

A remote code execution (RCE) vulnerability exists in fastjson 1.2.68 through 1.2.83. This vulnerability is exploitable under fastjson's stock default configuration — no AutoType enablement required, no classpath gadget required.