CVE-1999-0667

highpriority · attend · 55EPSS 0.136 · 96 %ileexploit · functionalEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

13.6% (96th) EPSS

CVSS 10 · high

Is it mine?

40 products

Who says so?

2 sources

enisa_euvd · fstec_bdu

EPSS · scored 2026-10-27

The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.5–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v2.010criticalAV:N/AC:L/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v2.09.5highAV:N/AC:L/Au:N/C:C/I:C/A:C/E:Fsecondary · CVSS-BT (t0sche)

The CWE weakness classes this flaw belongs to.

Public proof-of-concept and weaponised exploit code.

Products and version ranges known to be affected.

showing 20 of 40

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 1997-09-19modified 2026-06-16

External citations — patches, advisories, analysis.

scry

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