CVE-2026-40170
CVE-2026-40170: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-40170] Denial of service via stack buffer overflow during QUIC handshake
CVE-2026-40170Source published
Denial of service via stack buffer overflow during QUIC handshake. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): samba, ngtcp2-main. Resolved in Red Hat advisory RHSA-2026:22963 — update the affected packages (`sudo dnf update`).
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat Hardened Images
- Source-reported affected versions
- samba-0:4.23.5-109.el10_2
- samba-0:4.23.5-10.el9_8
- ngtcp2-main-1.22.1-1.hum1
- Source-reported fixed versions
- RHSA-2026:22963
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:22963 (`sudo dnf update` / `yum update`).
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