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Oracle Critical Patch Update April 2026

Released April 2026 · Oracle's advisory ↗ · ← Critical Patch Update, January 2026 · Security Patch Update, May 2026 →

421 CVEs in this release, one square each

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Share this chart Oracle Critical Patch Update April 2026, one square per CVE: 172 Java CVEs, 16 protected by Waratek, 8 exploited, 249 other CVEs in this release.

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By status

16Protected by Waratek4Mitigation candidate152No exploit published10Outside Waratek scope239Not applicable 8Exploited, marked by the ring

No exploit published. For 51 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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Including CVEs outside Waratek scope✕Has a public PoC✕
Overview 7 matches · 0 in Waratek scope · 0 protected · 2 exploited · 0 CISA KEV · 4 EPSS ≥ 0.5
7matches 0in Waratek scope0.0% 0protected0.0% 2exploited28.6% 0CISA KEV0.0% 4EPSS ≥ 0.557.1%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 7 100.0% Withdrawn CVE 0 0.0%
Critical 2 28.6% High 4 57.1% Medium 0 0.0% Low 1 14.3% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 7 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 2 28.6% Working exploit published 2 28.6% Proof of concept only 3 42.9% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 3 / quarter
Not applicable: 7 Low: 1High: 4Critical: 2 not blocked: 7 Proof of concept only: 3Working exploit published: 2Exploited: 2
Q3 241 Not applicable1 High1 not blocked1 Exploited1 Q4 240 Q1 250 Q2 250 Q3 252 Not applicable2 High2 not blocked2 Working exploit published2 Q4 253 Not applicable3 Critical1 High1 Low1 not blocked3 Exploited1 Proof of concept only2 Q1 261 Not applicable1 Critical1 not blocked1 Proof of concept only1
Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26
7 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-2025-15467 Critical 2026-01-27 Not applicable Proof of concept only Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution. When parsing CMS (Auth)EnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs. Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME (Auth)EnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
CVE-2025-65018 High 2025-11-25 Not applicable Proof of concept only LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.
CVE-2025-11201 Critical 2025-10-29 Not applicable Exploited MLflow Tracking Server Model Creation Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MLflow Tracking Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of model file paths. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-26921.
CVE-2025-61984 Low 2025-10-06 Not applicable Proof of concept only ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
CVE-2025-27210 High 2025-07-18 Not applicable Working exploit published An incomplete fix has been identified for CVE-2025-23084 in Node.js, specifically affecting Windows device names like CON, PRN, and AUX. This vulnerability affects Windows users of `path.join` API.
CVE-2025-6965 High 2025-07-15 Not applicable Working exploit published There exists a vulnerability in SQLite versions before 3.50.2 where the number of aggregate terms could exceed the number of columns available. This could lead to a memory corruption issue. We recommend upgrading to version 3.50.2 or above.
CVE-2024-6387 High 2024-07-01 Not applicable Exploited A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.