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CVE record · CVE-2026-56116

dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling

CVSS 7.1 HighEPSS 0.0029 · 21st percentile

Published by the CVE Program (CNA: VulnCheck) at 23 Jun 2026, 16:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
NetworkConfiguration dhcpcd pkg:github/NetworkConfiguration/dhcpcd
  • affected 10.0.7 to 10.3.2, inclusive semver
  • unaffected 708b4a56bae080a5b18c2e0c4c6fbe103131a2b0 git
Other versions: affected
Identifiers
CVE-2026-56116
CNA
VulnCheck
Weakness (CWE)
CWE-401
Tags
Published
23 Jun 2026
Updated
28 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)Used for this record
6.5 Medium 3.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 21st percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 23 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.