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ngtcp2 ngtcp2ngtcp2 has a qlog transport parameter serialization stack buffer overflow

Risk 46
Severity
7.5
First published (updated )
CVE-2026-40170

oss-secnghttp2 Denial of service: Assertion failudue to the missing state validation

First published (updated )
https://seclists.org/oss-sec/2026/q1/357

nghttp2 nghttp2nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.6…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2448754

nghttp2nghttp2 Denial of service: Assertion failure due to the missing state validation

Risk 46
Severity
7.5
First published (updated )
CVE-2026-27135

BleepingComputerNew HTTP/2 DoS attack can crash web servers with a single connection

First published (updated )
News
BleepingComputer
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Fedoraproject FedoraReading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage

Risk 28
Severity
5.3
First published (updated )
CVE-2024-28182

CVE-2023-44487: HTTP/2 Rapid Reset attack against many implementations

First published (updated )
https://seclists.org/oss-sec/2023/q4/75

Apache Tomcat- Rapid Reset HTTP/2 vulnerability

Risk 65
Severity
7.5
Exploited
Zeroday
First published (updated )
CVE-2023-44487

redhat/envoyEnvoy vulnerable to HTTP/2 memory leak in nghttp2 codec

Risk 43
Severity
7.5
First published (updated )
CVE-2023-35945

Oracle MySQLDenial of service in nghttp2

Risk 45
Severity
7.5
First published (updated )
CVE-2020-11080
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Nodejs Node.jsInput Validation, Null Pointer Dereference

Risk 43
Severity
7.5
First published (updated )
CVE-2018-1000168

Fedoraproject Fedoranghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).

Risk 18
Severity
3.3
First published (updated )
CVE-2016-1544

Apple iOS and macOSBuffer Overflow, Use After Free

Risk 87
Severity
10
First published (updated )
CVE-2015-8659

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