CVE-2026-56116: dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling
CSIRTS triage
- What
- A memory leak can lead to denial of service via IPv6 Router Advertisement handling.
- Who is affected
- Users of dhcpcd are affected by this vulnerability.
- Urgency
- Remediation is medium urgency due to the medium severity rating.
- Action
- Update dhcpcd to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56116
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-2026-561160.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-56116 | coverage & exploitation status | NVD · CVE.org |
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