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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👁 7 Views

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

Related
Detection
Refs
ReporterTitlePublishedViews
Family
RedhatCVE		CVE-2023-39325
11 Oct 202317:12
–redhatcve
RedhatCVE		CVE-2023-44487
10 Oct 202321:13
–redhatcve
RedhatCVE		CVE-2023-45802
19 Oct 202319:44
–redhatcve
RedhatCVE		CVE-2023-6596
17 Jan 202419:30
–redhatcve
RedhatCVE		CVE-2024-12698
16 Dec 202422:50
–redhatcve
RedhatCVE		CVE-2024-4438
6 May 202417:55
–redhatcve
RedHat Linux		Important: Red Hat Security Advisory: nodejs security update
17 Oct 202309:22
–redhat
RedHat Linux		HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)
17 Oct 202309:22
–redhat
RedHat Linux		Important: Red Hat Security Advisory: nghttp2 security update
17 Oct 202309:19
–redhat
RedHat Linux		HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)
17 Oct 202309:19
–redhat
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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
7