675 matches found
H2O HTTP Server HTTP/2 Protocol DoS Vulnerability (GHSA-mrjm-qq9m-9mjq, MadeYouReset)
H2O is prone to a denial of service DoS vulnerability in the HTTP/2 protocol dubbed SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...
Linux Distros Unpatched Vulnerability : CVE-2018-0608
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Buffer overflow in H2O version 2.2.4 and earlier allows remote attackers to execute arbitrary code or cause a denial of service DoS via unspecified vectors...
PT-2025-32984
Name of the Vulnerable Software and Affected Versions AMPHP affected versions not specified Apache Tomcat affected versions not specified Eclipse Foundation affected versions not specified F5 affected versions not specified Fastly affected versions not specified gRPC affected versions not specifi...
PT-2025-38661
Name of the Vulnerable Software and Affected Versions h2oai/h2o-3 versions 3.46.0.8 and earlier Description A deserialization issue exists in h2oai/h2o-3 versions 3.46.0.8 and earlier, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability is due to improp...
CVE-2024-55567
Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary...
A vulnerability in Insyde H2O UEFI application allows for digital certificate injection via NVRAM variable
Overview A vulnerability in an Insyde H2O UEFI firmware application allows digital certificate injection through an unprotected NVRAM variable. This issue arises from the unsafe use of an NVRAM variable, which is used as trusted storage for a digital certificate in the trust validation chain. An...
PT-2025-24404
Name of the Vulnerable Software and Affected Versions Insyde H2O UEFI firmware affected versions not specified Description A flaw exists in the digital signature verification process within Insyde H2O UEFI firmware. This issue does not properly validate variable attributes, allowing an attacker t...
H2O-3 MySQL JDBC Driver Deserialization Vulnerability_Key-Value Bypass Parameter Inspection
Creator： zack H2O-3 Version： 3.46.0.7、3.47.0.6928 MySQL JDBC Driver Version： 8.0.19 JDK Version： 8u112 Description There is a JDBC deserialization vulnerability in the H2O-3 REST API（POST /99/ImportSQLTable） that does not require authentication. This vulnerability can lead to Remote Code Executio...
CVE-2024-25622
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The configuration directives provided by the headers handler allows users to modify the response headers being sent by h2o. The configuration file of h2o has scopes, and the inner scopes e.g., path level are expected to inherit t...
CVE-2024-45397
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by...
CVE-2024-45403
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, th...
CVE-2023-28468
An issue was discovered in FvbServicesRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The FvbServicesRuntimeDxe SMM module exposes an SMI handler that allows an attacker to interact with the SPI flash at run-time from the OS...
CVE-2023-41337
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. In version 2.3.0-beta2 and prior, when h2o is configured to listen to multiple addresses or ports with each of them using different backend servers managed by multiple entities, a malicious backend entity that also has the...
CVE-2023-6016
An attacker is able to gain remote code execution on a server hosting the H2O dashboard through it's POJO model import feature...
CVE-2023-6013
H2O is vulnerable to stored XSS vulnerability which can lead to a Local File Include attack...
CVE-2023-39281
A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE phase...
CVE-2023-22615
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handler to overwrite private SMRAM...
CVE-2023-30847
H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP...
CVE-2023-6038
A Local File Inclusion LFI vulnerability exists in the h2o-3 REST API, allowing unauthenticated remote attackers to read arbitrary files on the server with the permissions of the user running the h2o-3 instance. This issue affects the default installation and does not require user interaction. Th...