CVE detail
CVE-2026-44435
Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a Denial of Service. This issue has been fixed by commit 937d0e9.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
No excerpt available.
Exploitgithub.comJul 16, 2026, 11:16 PMNo excerpt available.
Exploitgithub.comJul 16, 2026, 11:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2025-69534CVSS 7.5 · High
Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError during Markdown parsi…
- CVE-2025-8537CVSS 2.9 · Low
A vulnerability, which was classified as problematic, was found in Axiomatic Bento4 up to 1.6.0-641. Affected is the function AP4_DataBuffer::SetDataSize of the file Mp4Decrypt.cp…
- CVE-2024-34036CVSS 4.3 · Medium
An issue was discovered in O-RAN Near Realtime RIC I-Release. To exploit this vulnerability, an attacker can disrupt the initial connection between a gNB and the Near RT-RIC by in…
- CVE-2024-34035CVSS 5.7 · Medium
An issue was discovered in O-RAN Near Realtime RIC H-Release. To trigger the crashing of the e2mgr, an adversary must flood the system with a significant quantity of E2 Subscripti…
- CVE-2026-44433CVSS 5.3 · Medium
Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 8b178e6, an adversarial peer could send a STREAM frame carryi…
- CVE-2025-61684CVSS 7.5 · High
Quicly, an IETF QUIC protocol implementation, is susceptible to a denial-of-service attack prior to commit d9d3df6a8530a102b57d840e39b0311ce5c9e14e. A remote attacker can exploit…