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Fencer Vulns
medium 6.4

CVE-1999-0763 json

NetBSD on a multi-homed host allows ARP packets on one network to modify ARP entries on another connected network.

published 1999-05-01 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0744

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

NetBSD on a multi-homed host allows ARP packets on one network to modify ARP entries on another connected network.

Exploit prediction

1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.