{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55606 exists.","fix":"No fix has been published for CVE-2026-55606 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55606 is a medium-severity vulnerability in openwrt odhcpd, published on 23 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-55606 and fix it if it is affected.\n\nWhat it is: CVE-2026-55606 is a medium-severity vulnerability in openwrt odhcpd, published on 23 Oct 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55606 exists.\n\nAffected product: openwrt odhcpd. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-55606/ (Markdown: https://insights.sbomify.com/CVE-2026-55606/index.md)","id":"CVE-2026-55606","markdown":"https://insights.sbomify.com/CVE-2026-55606/index.md","name":"CVE-2026-55606","record":{"aliases":["GHSA-x8x4-7gvf-gp45"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-126","name":"Buffer Over-read"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"odhcpd: Stack buffer overread via DUID length endianness mismatch in memcmp()","id":"CVE-2026-55606","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Claude Code: Sandbox Escape via Git Worktree Path Confusion Allows Unsandboxed Code Execution","id":"CVE-2026-55607"},"packages":[],"prev":{"headline":"@arikusi/deepseek-mcp-server Missing Authentication on Self-Hosted HTTP MCP Endpoint","id":"CVE-2026-55605"},"products":["odhcpd"],"published":"2026-10-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["openwrt"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-55606/"}