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The vulnerability of the HTTP/2 protocol lies in its ability to create request streams within an already established network connection, without the need to establish new connections or confirm the receipt of packets. This allows attackers to cause service failures.

🗓️ 11 Oct 2023 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 5 Views

HTTP/2 creates streams on existing connections without new connections or packet confirmations, enabling remote service failures.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: There is a vulnerability in HTTP/2 protocol used by Netty on IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2023-44487)
5 Apr 202415:08
–ibm
IBM Security Bulletins		Security Bulletin: IBM MQ is vulnerable to issues in Eclipse (CVE-2023-4218, CVE-2023-44487)
29 Feb 202421:58
–ibm
IBM Security Bulletins		Security Bulletin: IBM Operational Decision Manager November 2023 - Multiple CVEs addressed
15 Nov 202313:37
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in IBM WebSphere Application Server Liberty affect IBM Storage Scale System
16 Sep 202418:20
–ibm
IBM Security Bulletins		Security Bulletin: IBM Cognos Analytics is affected by multiple vulnerabilities
15 Apr 202503:05
–ibm
IBM Security Bulletins		Security Bulletin: An Eclipse Jetty vulnerability affects IBM Rational Functional Tester
21 Dec 202317:17
–ibm
IBM Security Bulletins		Security Bulletin: IBM Storage Protect is vulnerable to multiple attacks due to http2-server and http2-common (CVE-2023-44487)
15 Dec 202316:25
–ibm
IBM Security Bulletins		Security Bulletin: IBM WebSphere Application Server Liberty, which is bundled with IBM Cloud Pak for Applications, is vulnerable to denial of service due to HTTP/2 Rapid Reset vulnerability (CVE-2023-44487)
15 Nov 202320:45
–ibm
IBM Security Bulletins		Security Bulletin: IBM Planning Analytics Workspace is affected by vulnerabilities in multiple Open Source Software (OSS) components
28 Mar 202415:34
–ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM protocols are affected by denial of service.
15 Jul 202515:17
–ibm
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01 Jul 2026 00:00Current
7High risk
Vulners AI Score7
CVSS 37.5
CVSS 27.8
EPSS0.99999
Hypertext Transfer Protocolversion twoexisting connectionspacket confirmationsservice failuresremote exploitation
5