CVE Explorer
CVE-2026-18321
Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"ntpsec","vendor":"NTPsec","versions":[{"lessThan":"1.2.5","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:1d88bf17052864de80a43778695ebb889e98a14a88f46da9a1221a9547a15a36 · sha256:218d3f984154604d… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:1d88bf17052864de80a43778695ebb889e98a14a88f46da9a1221a9547a15a36 · sha256:218d3f984154604d… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-120","description":"CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:1d88bf17052864de80a43778695ebb889e98a14a88f46da9a1221a9547a15a36 · sha256:218d3f984154604d… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://gitlab.com/NTPsec/ntpsec/-/work_items/890"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:1d88bf17052864de80a43778695ebb889e98a14a88f46da9a1221a9547a15a36 · sha256:218d3f984154604d… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.