[NEW] [medium] dhcpcd: Vulnerability allows denial of service

mediumCVE-2025-70102

An attacker from an adjacent network can exploit a vulnerability in dhcpcd to conduct a denial of service attack.

CSIRTS triage

vendor: dhcpcd product: dhcpcd Denial of service

What: A vulnerability allows an attacker from an adjacent network to conduct a denial of service attack.
Who is affected: Deployments of dhcpcd are affected by this vulnerability.
Urgency: Remediation is medium urgency due to the medium severity of the vulnerability and lack of current exploitation.
Action: Update to the latest version of dhcpcd to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-07-06
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2195

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-701020.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-70102	coverage & exploitation status	NVD · CVE.org

Recent advisories for dhcpcd

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-14258: Dhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in router a…msrc · 2026-07-02
mediumCVE-2026-14258: A flaw was found in dhcpcd's IPv6 Neighbor Discovery Router Advertisement processing. A specia…nvd · 2026-07-01
mediumCVE-2026-56116: dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handlingmsrc · 2026-06-09