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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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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
EPSS ≥ 0.5✕
Overview 8 matches · 4 protected · 3 exploited · 3 CISA KEV · 6 public PoC
8matches 4protected50.0% 3exploited37.5% 3CISA KEV37.5% 6public PoC75.0%
Protected by Waratek 4 50.0% Rule in development 0 0.0% Mitigation candidate 2 25.0% No exploit published 2 25.0%
Critical 2 25.0% High 4 50.0% Medium 2 25.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 4 50.0% partly blocked 0 0.0% not blocked 4 50.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 3 37.5% Working exploit published 3 37.5% Proof of concept only 0 0.0% Forecast only 2 25.0% No public exploit 0 0.0%
split by peak 1 / quarter
No exploit published: 2Mitigation candidate: 2Protected by Waratek: 4 Medium: 2High: 4Critical: 2 not blocked: 4blocked by ARMR today: 4 Forecast only: 2Working exploit published: 3Exploited: 3
Q1 201 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1 Q2 201 Protected by Waratek1 High1 blocked by ARMR today1 Working exploit published1 Q3 201 Mitigation candidate1 High1 not blocked1 Working exploit published1 Q4 201 No exploit published1 Medium1 not blocked1 Forecast only1 Q1 210 Q2 210 Q3 211 No exploit published1 Medium1 not blocked1 Forecast only1 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 240 Q2 240 Q3 240 Q4 241 Protected by Waratek1 High1 blocked by ARMR today1 Working exploit published1 Q1 251 Protected by Waratek1 Critical1 blocked by ARMR today1 Exploited1
Q1 20Q3 20Q1 21Q3 21Q1 22Q3 22Q1 23Q3 23Q1 24Q3 24Q1 25
8 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-2025-24813 Critical 2025-03-10 Protected by Waratek Exploited Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - application was using Tomcat's file based session persistence with the default storage location - application included a library that may be leveraged in a deserialization attack Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.
CVE-2024-38819 High 2024-12-19 Protected by Waratek Working exploit published Applications serving static resources through the functional web frameworks WebMvc.fn or WebFlux.fn are vulnerable to path traversal attacks. An attacker can craft malicious HTTP requests and obtain any file on the file system that is also accessible to the process in which the Spring application is running.
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-2021-33037 Medium 2021-07-12 No exploit published Forecast only Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
CVE-2020-13943 Medium 2020-10-12 No exploit published Forecast only If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.
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-2020-9484 High 2020-05-20 Protected by Waratek Working exploit published When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.
CVE-2020-1938 Critical 2020-02-24 Protected by Waratek Exploited When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required. This vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the web application - processing any file in the web application as a JSP Further, if the web application allowed file upload and stored those files within the web application (or the attacker was able to control the content of the web application by some other means) then this, along with the ability to process a file as a JSP, made remote code execution possible. It is important to note that mitigation is only required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.