{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38562 exists.","fix":"No fix has been published for CVE-2023-38562 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-38562 is a high-severity use after free vulnerability in Weston Embedded uC-TCP-IP, published on 20 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-38562 and fix it if it is affected.\n\nWhat it is: CVE-2023-38562 is a high-severity use after free vulnerability in Weston Embedded uC-TCP-IP, published on 20 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38562 exists.\n\nAffected product: Weston Embedded uC-TCP-IP. 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-2023-38562/ (Markdown: https://insights.sbomify.com/CVE-2023-38562/index.md)","id":"CVE-2023-38562","markdown":"https://insights.sbomify.com/CVE-2023-38562/index.md","name":"CVE-2023-38562","record":{"aliases":["GHSA-43mr-mm46-m2qq"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Embedded TCP/IP stack","requires_auth":"none","summary":"A double-free in Weston Embedded uC-TCP-IP allows remote attackers to execute arbitrary code via crafted network packets.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"uc-tcp-ip","vendor":"weston-embedded"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Use after free in uC-TCP-IP","id":"CVE-2023-38562","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in Archer C1200","id":"CVE-2023-38563"},"packages":[],"prev":{"headline":"Privilege escalation in Intel(R) XTU software","id":"CVE-2023-38561"},"products":["uC-TCP-IP"],"published":"2024-02-20","related":[{"cvss_score":5.9,"headline":"Denial of service in Gecko Platform","id":"CVE-2023-39540","kev_date_added":null,"published":"2024-02-20"},{"cvss_score":5.9,"headline":"Denial of service in Gecko Platform","id":"CVE-2023-39541","kev_date_added":null,"published":"2024-02-20"}],"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Weston Embedded"]},"summary":"A double-free in Weston Embedded uC-TCP-IP allows remote attackers to execute arbitrary code via crafted network packets.","url":"https://insights.sbomify.com/CVE-2023-38562/"}