CVE-2001-0864 json
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL…
published 2001-12-06 24 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0847
- cvss
- 7.5
- 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
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions.
Patch / fix
Exploit prediction
1.39% 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 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
cisco.com
/warp/public/707/GSR-ACL-pub.shtml
vendor-advisory, patch
-
ciac.org
/ciac/bulletins/m-018.shtml
third-party-advisory, government-resource
-
osvdb.org
/1986
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/7553
vdb-entry
-
securityfocus.com
/bid/3536
vdb-entry
Sources
- CVE List CVE-2001-0864
- NVD CVE-2001-0864
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