How severe is CVE-2019-11578?

CVE-2019-11578 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-11578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11578?

CVE-2019-11578 affects Dhcpcd Project Dhcpcd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11578?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-11578 published?

CVE-2019-11578 was published on 2019-04-28 and last updated on 2026-06-17.

CVE-2019-11578

CVE-2019-11578 is a medium-severity vulnerability in Dhcpcd Project Dhcpcd with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Dhcpcd Project Dhcpcd
Published: 2019-04-28
Last modified: 2026-06-17

Description

auth.c in dhcpcd before 7.2.1 allowed attackers to infer secrets by performing latency attacks.

Frequently asked questions

What is CVE-2019-11578?: auth.c in dhcpcd before 7.2.1 allowed attackers to infer secrets by performing latency attacks.
How severe is CVE-2019-11578?: CVE-2019-11578 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-11578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11578?: CVE-2019-11578 affects Dhcpcd Project Dhcpcd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11578?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-11578 published?: CVE-2019-11578 was published on 2019-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dhcpcd_project:dhcpcd:*:*:*:*:*:*:*:*

More vulnerabilities in Dhcpcd Project Dhcpcd

CVE-2019-11766 — Critical (CVSS 9.8): dhcp6.c in dhcpcd before 6.11.7 and 7.x before 7.2.2 has a buffer over-read in the D6_OPTION_PD_EXCLUDE feature.
CVE-2019-11577 — Critical (CVSS 9.8): dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses.
CVE-2016-1503 — Critical (CVSS 9.8): dhcpcd before 6.10.0, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before…
CVE-2016-1504 — High (CVSS 7.5): dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related…
CVE-2012-6700 — High (CVSS 7.5): The decode_search function in dhcp.c in dhcpcd 3.x does not properly free allocated memory, which allows remote DHCP…
CVE-2012-6699 — High (CVSS 7.5): The decode_search function in dhcp.c in dhcpcd 3.x allows remote DHCP servers to cause a denial of service…

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