CVE-2012-3946 Security feature bypass in n/a
Remote attackers can bypass interface ACL restrictions on Cisco IOS devices by sending specific IPv6 packets, allowing unauthorized network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2012-3946?
CVE-2012-3946 is a medium-severity vulnerability in Cisco Ios, published on 24 Apr 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-264
Which versions are affected by CVE-2012-3946?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2012-3946?
No fix has been published for CVE-2012-3946 yet. Limit exposure of the affected software until one is available.
Is CVE-2012-3946 being exploited?
There is no known exploitation of CVE-2012-3946 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-6g2p-g3v6-8357.