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    CVE-2025-70102

    A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options. In parse_option() (src/if-options.c:1886), the code performs a member access on a NULL pointer of type 'struct dhcp_opt' when an unexpected/invalid option token or parsing state causes the lookup to yield NULL. The instrumented fuzzing build reports 'runtime error: member access within null pointer of type struct dhcp_opt' and aborts.

    Published:Jun 15, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 15, 2026
    EPSS Score:0.00169
    CVSS Score:6.3

    Affected Products

    Vendor
    Dhcpcd Project
    Product
    Dhcpcd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-56114 (CVSS 6) — dhcpcd through 10.3.2, fixed in commit 2f00c7b, contains a one-byte stack out-of-bounds write vulnerability in…
    CVE-2026-56113 (CVSS 6) — dhcpcd through 10.3.2, fixed in commit 5733d3c, contains a heap use-after-free vulnerability that allows unaut…
    CVE-2019-11766 (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 featur…
    CVE-2019-11579 (CVSS 5.3) — dhcp.c in dhcpcd before 7.2.1 contains a 1-byte read overflow with DHO_OPTSOVERLOADED.…
    CVE-2019-11578 (CVSS 5.9) — auth.c in dhcpcd before 7.2.1 allowed attackers to infer secrets by performing latency attacks.…
    CVE-2019-11577 (CVSS 9.8) — dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses.…
    CVE-2016-1504 (CVSS 7.5) — dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High