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Oracle Critical Patch Update April 2025

Released April 2025 · Oracle's advisory ↗ · ← Critical Patch Update, January 2025 · Critical Patch Update, July 2025 →

255 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update April 2025, one square per CVE: 118 Java CVEs, 22 protected by Waratek, 11 exploited, 137 other CVEs in this release.

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By status

22Protected by Waratek8Mitigation candidate88No exploit published16Outside Waratek scope121Not applicable 11Exploited, marked by the ring

No exploit published. For 33 of them, Oracle's security advisory is the source of public detail.

Protected by Waratek. Waratek RASP can block exploitation of these on systems that have not applied the patch yet.

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Columns
Overview 4 matches · 0 protected · 1 exploited · 1 CISA KEV · 2 EPSS ≥ 0.5
4matches 0protected0.0% 1exploited25.0% 1CISA KEV25.0% 2EPSS ≥ 0.550.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 4 100.0% No exploit published 0 0.0%
Critical 0 0.0% High 4 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 4 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 1 25.0% Working exploit published 1 25.0% Proof of concept only 2 50.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 1 / quarter
Mitigation candidate: 4 High: 4 not blocked: 4 Proof of concept only: 2Working exploit published: 1Exploited: 1
Q2 201 Mitigation candidate1 High1 not blocked1 Proof of concept only1 Q3 201 Mitigation candidate1 High1 not blocked1 Working exploit published1 Q4 200 Q1 210 Q2 210 Q3 210 Q4 210 Q1 220 Q2 220 Q3 220 Q4 220 Q1 230 Q2 230 Q3 230 Q4 231 Mitigation candidate1 High1 not blocked1 Exploited1 Q1 241 Mitigation candidate1 High1 not blocked1 Proof of concept only1
Q3 20Q1 21Q3 21Q1 22Q3 22Q1 23Q3 23Q1 24
4 matches Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.
CVE Severity Published▾ Status Exploitation Description
CVE-2024-24549 High 2024-03-13 Mitigation candidate Proof of concept only Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
CVE-2023-44487 High 2023-10-10 Mitigation candidate Exploited The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVE-2020-13935 High 2020-07-14 Mitigation candidate Working exploit published The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.
CVE-2020-11996 High 2020-06-26 Mitigation candidate Proof of concept only A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.