CVE-2026-18321
CVE-2026-18321: 1 tracked advisory record across Red Hat. Compare vendor sources.
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Red Hat
1 advisory- Advisory severityMedium4.7
Medium [CVE-2026-18321] Denial of Service via buffer overflow in Zyfer refclock
CVE-2026-18321Source published Source updated
Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd A flaw was found in NTPsec. This could result in a denial of service (DoS), making the network time synchronization service unavailable. This flaw does not affect Red Hat Products, it only affects community projects. Red Hat severity: Low — CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-120.
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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