How severe is CVE-2019-11579?

CVE-2019-11579 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-11579 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11579?

CVE-2019-11579 primarily affects Dhcpcd Project Dhcpcd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-11579?

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

When was CVE-2019-11579 published?

CVE-2019-11579 was published on 2019-04-28 and last updated on 2026-06-17.

CVE-2019-11579

CVE-2019-11579 is a medium-severity vulnerability in Dhcpcd Project Dhcpcd with a CVSS 3.x base score of 5.3. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Dhcpcd Project Dhcpcd
Published: 2019-04-28
Last modified: 2026-06-17

Description

dhcp.c in dhcpcd before 7.2.1 contains a 1-byte read overflow with DHO_OPTSOVERLOADED.

Frequently asked questions

What is CVE-2019-11579?: dhcp.c in dhcpcd before 7.2.1 contains a 1-byte read overflow with DHO_OPTSOVERLOADED.
How severe is CVE-2019-11579?: CVE-2019-11579 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-11579 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11579?: CVE-2019-11579 primarily affects Dhcpcd Project Dhcpcd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-11579?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-11579 published?: CVE-2019-11579 was published on 2019-04-28 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:dhcpcd_project:dhcpcd:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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