CVE-2012-3946
MEDIUM · CVSS 5.0EPSS 1.9%EU EUVD
Cisco IOS before 15.3(2)S allows remote attackers to bypass interface ACL restrictions in opportunistic circumstances by sending IPv6 packets in an unspecified scenario in which expected packet drops do not occur for "a small percentage" of the packets, aka Bug ID CSCty73682.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-264
- EPSS score
- 1.9% (80th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-3890)
- Published
- April 24, 2014
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-3890 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / ios
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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