CVE-2026-55606
6.5 MEDIUMpublic exploit availablePublished 2026-10-23 · Updated 2026-10-23
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
odhcpd is the DHCPv6, DHCPv4, and router-advertisement server used by OpenWrt. In versions 25.12 and prior, odhcpd's DHCPv6 self-loop detection at dhcpv6.c:720 uses a network-byte-order DUID length value directly as the memcmp() size parameter. On little-endian hosts, this causes memcmp() to read far beyond the stack buffer — a single unauthenticated DHCPv6 packet triggers a 2560-byte overread from a 128-byte buffer. At time of publication, there are no publicly available patches.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weaknesses
CWE-126
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- LOWCVE-2026-101094
- LOWCVE-2026-101130
- HIGHCVE-2026-101310
- HIGHCVE-2026-102728PoC
- HIGHCVE-2026-102758PoC
- MEDIUMCVE-2026-103567
- MEDIUMCVE-2026-108454
- UNSCOREDCVE-2026-112394PoC
Related by shared AI tags and CWE weakness class. Browse the full archive.