CVE-1999-1466 json
Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access list…
published 1992-12-10 33 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1447
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the "established" keyword.
Patch / fix
- cert.org/advisories/CA-1992-20.html advisory
- securityfocus.com/bid/53 advisory
Exploit prediction
2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Technology feeds
References
-
cert.org
/advisories/CA-1992-20.html
third-party-advisory, patch, us-government-resource
-
securityfocus.com
/bid/53
vdb-entry, patch, vendor-advisory
Sources
- CVE List CVE-1999-1466
- NVD CVE-1999-1466
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