{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-29004 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-29004 is a high-severity memory corruption vulnerability in vda-linux busybox_mirror, published on 4 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-29004 and fix it if it is affected.\n\nWhat it is: CVE-2026-29004 is a high-severity memory corruption vulnerability in vda-linux busybox_mirror, published on 4 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-29004 in the wild and no public exploit code.\n\nAffected product: vda-linux busybox_mirror. 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-2026-29004/ (Markdown: https://insights.sbomify.com/CVE-2026-29004/index.md)","id":"CVE-2026-29004","markdown":"https://insights.sbomify.com/CVE-2026-29004/index.md","name":"CVE-2026-29004","record":{"aliases":["BELL-CVE-2026-29004","DEBIAN-CVE-2026-29004","ECHO-4d14-5e51-2c9b","GHSA-vx55-mmvv-p227","OESA-2026-2357","RHSA-2026:30652","SUSE-SU-2026:2053-1","SUSE-SU-2026:2054-1","SUSE-SU-2026:2069-1","SUSE-SU-2026:21943-1","SUSE-SU-2026:22020-1","SUSE-SU-2026:2204-1","UBUNTU-CVE-2026-29004","openSUSE-SU-2026:10740-1","openSUSE-SU-2026:20883-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"BusyBox DHCPv6 client","requires_auth":"none","summary":"Network-adjacent attackers can trigger heap buffer overflow in BusyBox DHCPv6 client via crafted responses, leading to code execution or denial of service on embedded systems.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-131","name":"Incorrect Calculation of Buffer Size"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv6 response with a malformed D6_OPT_DNS_SERVERS option. Attackers can exploit incorrect heap buffer allocation calculations in the option_to_env() function to cause denial of service or achieve arbitrary code execution on embedded systems without heap hardening.","ecosystems":["Red Hat:hummingbird:1","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"BusyBox DHCPv6 Client Heap Buffer Overflow via DNS_SERVERS","id":"CVE-2026-29004","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":6,"n_references":5,"next":{"headline":"U-Boot 2026.04-rc3 Out-of-Bounds Read in tcp_rx_state_machine via tcp.c","id":"CVE-2026-29007"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.37.0-7.3.hum1"],"introduced":["0"],"last_affected":[],"package":"busybox","purl":"pkg:rpm/redhat/busybox","source":"RHSA-2026:30652"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.37.0-7.3.hum1"],"introduced":["0"],"last_affected":[],"package":"busybox-petitboot","purl":"pkg:rpm/redhat/busybox-petitboot","source":"RHSA-2026:30652"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:1.37.0-7.3.hum1"],"introduced":["0"],"last_affected":[],"package":"busybox-shared","purl":"pkg:rpm/redhat/busybox-shared","source":"RHSA-2026:30652"},{"ecosystem":"SUSE:Linux Enterprise Server 16.0","fixed":["1.37.0-160000.6.1"],"introduced":["0"],"last_affected":[],"package":"busybox","purl":"pkg:rpm/suse/busybox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2016.0","source":"SUSE-SU-2026:22020-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","fixed":["1.37.0-160000.6.1"],"introduced":["0"],"last_affected":[],"package":"busybox","purl":"pkg:rpm/suse/busybox\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0","source":"SUSE-SU-2026:22020-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.37.0-11.1"],"introduced":["0"],"last_affected":[],"package":"busybox","purl":"pkg:rpm/opensuse/busybox\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10740-1"}],"prev":{"headline":"CouchCMS Privilege Escalation via f_k_levels_list Parameter","id":"CVE-2026-29002"},"products":["busybox_mirror"],"published":"2026-05-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["vda-linux"]},"summary":"Network-adjacent attackers can trigger heap buffer overflow in BusyBox DHCPv6 client via crafted responses, leading to code execution or denial of service on embedded systems.","url":"https://insights.sbomify.com/CVE-2026-29004/"}