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CVE-2012-4623

UnknownEPSS 2.77%

Last modified

CVE-2012-4623 is a vulnerability of currently unknown severity. The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG before 3.3.1SG allows remote attackers to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.. EPSS estimates a 2.77% chance of exploitation in the next 30 days.

Description

The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG before 3.3.1SG allows remote attackers to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.

Metrics

EPSS Probability
2.77%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos Xe2.1
CiscoIos Xe2.1.0
CiscoIos Xe2.1.1
CiscoIos Xe2.1.2
CiscoIos Xe2.2
CiscoIos Xe2.2.1
CiscoIos Xe2.2.2
CiscoIos Xe2.2.3
CiscoIos Xe2.3
CiscoIos Xe2.3.0
CiscoIos Xe2.3.1
CiscoIos Xe2.3.1t
CiscoIos Xe2.3.2
CiscoIos Xe2.4
CiscoIos Xe2.4.0
CiscoIos Xe2.4.1
CiscoIos Xe2.4.2
CiscoIos Xe2.4.3
CiscoIos Xe2.4.4
CiscoIos Xe2.5.0
CiscoIos Xe2.5.1
CiscoIos Xe2.5.2
CiscoIos Xe2.6.0
CiscoIos Xe2.6.1
CiscoIos Xe2.6.2
CiscoIos12.3
CiscoIos12.3\(1a\)
CiscoIos12.3\(2\)ja
CiscoIos12.3\(2\)ja5
CiscoIos12.3\(2\)jk
CiscoIos12.3\(2\)jk1
CiscoIos12.3\(2\)t3
CiscoIos12.3\(2\)t8
CiscoIos12.3\(2\)xa4
CiscoIos12.3\(2\)xa5
CiscoIos12.3\(2\)xc1
CiscoIos12.3\(2\)xc2
CiscoIos12.3\(2\)xc3
CiscoIos12.3\(2\)xc4
CiscoIos12.3\(2\)xe3
CiscoIos12.3\(2\)xe4
CiscoIos12.3\(3e\)
CiscoIos12.3\(3h\)
CiscoIos12.3\(3i\)
CiscoIos12.3\(4\)eo1
CiscoIos12.3\(4\)ja
CiscoIos12.3\(4\)ja1
CiscoIos12.3\(4\)t
CiscoIos12.3\(4\)t1
CiscoIos12.3\(4\)t2

Showing 50 of 338 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2012-4623?
The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG before 3.3.1SG allows remote attackers to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.
How severe is CVE-2012-4623?
Severity scoring for CVE-2012-4623 is pending analysis. The EPSS model estimates a 2.77% probability of exploitation in the next 30 days.
How do I fix CVE-2012-4623?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST