{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-3038 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-3038 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3038 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-3038 and fix it if it is affected.\n\nWhat it is: CVE-2026-3038 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-3038 in the wild and no public exploit code.\n\nAffected product: Freebsd Freebsd. 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-2026-3038/ (Markdown: https://insights.sbomify.com/CVE-2026-3038/index.md)","id":"CVE-2026-3038","markdown":"https://insights.sbomify.com/CVE-2026-3038/index.md","name":"CVE-2026-3038","record":{"aliases":["GHSA-jjxv-p5qr-w2hv"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"FreeBSD kernel","requires_auth":"none","summary":"An unprivileged user can crash the FreeBSD kernel via a stack buffer overflow in routing sockets, potentially leading to privilege escalation if mitigations are bypassed.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"freebsd","cpe":[{"product":"freebsd","vendor":"freebsd"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"The rtsock_msg_buffer() function serializes routing information into a buffer.  As a part of this, it copies sockaddr structures into a sockaddr_storage structure on the stack.  It assumes that the source sockaddr length field had already been validated, but this is not necessarily the case, and it's possible for a malicious userspace program to craft a request which triggers a 127-byte overflow.\n\n In practice, this overflow immediately overwrites the canary for the rtsock_msg_buffer() stack frame, resulting in a panic once the function returns.\n\nThe bug allows an unprivileged user to crash the kernel by triggering a stack buffer overflow in rtsock_msg_buffer().  In particular, the overflow will corrupt a stack canary value that is verified when the function returns; this mitigates the impact of the stack overflow by triggering a kernel panic.\n\nOther kernel bugs may exist which allow userspace to find the canary value and thus defeat the mitigation, at which point local privilege escalation may be possible.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Local DoS and possible privilege escalation via routing sockets","id":"CVE-2026-3038","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"freebsd:freebsd","products":["freebsd:freebsd"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"BIND 9 server memory exhaustion during GSS-API TKEY negotiation","id":"CVE-2026-3039"},"packages":[],"prev":{"headline":"Copeland XWEB and XWEB Pro OS Command Injection","id":"CVE-2026-3037"},"products":["FreeBSD"],"published":"2026-03-09","related":[{"cvss_score":10,"headline":"Memory corruption in FreeBSD","id":"CVE-2018-17160","kev_date_added":null,"published":"2018-12-04"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2014-3954","kev_date_added":null,"published":"2014-10-27"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2006-4304","kev_date_added":null,"published":"2006-08-24"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2006-0226","kev_date_added":null,"published":"2006-01-19"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-2004-0002","kev_date_added":null,"published":"2004-02-03"},{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2001-0969","kev_date_added":null,"published":"2002-03-09"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-2001-0388","kev_date_added":null,"published":"2001-09-18"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-09","vendors":["FreeBSD"]},"summary":"An unprivileged user can crash the FreeBSD kernel via a stack buffer overflow in routing sockets, potentially leading to privilege escalation if mitigations are bypassed.","url":"https://insights.sbomify.com/CVE-2026-3038/"}