What’s Vulnerable › Vulnerabilities

CVE-2019-11577

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 53.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-28 · updated 2026-06-17
• Weakness: CWE-119

Description

dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses.

Affected products

• NetworkConfiguration dhcpcd: before 7.2.1 — fixed in 7.2.1

How to fix

Upgrade to a fixed version: NetworkConfiguration dhcpcd 7.2.1. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/108090
• https://roy.marples.name/archives/dhcpcd-discuss/0002415.html
• https://roy.marples.name/git/dhcpcd.git/commit/?id=8d11b33f6c60e2db257130fa383ba76b6018bcf6
• http://www.securityfocus.com/bid/108090
• https://roy.marples.name/archives/dhcpcd-discuss/0002415.html
• https://roy.marples.name/git/dhcpcd.git/commit/?id=8d11b33f6c60e2db257130fa383ba76b6018bcf6

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