{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-12886 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-12886 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-12886 is a critical memory corruption vulnerability in n/a, published on 18 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-12886 and fix it if it is affected.\n\nWhat it is: CVE-2020-12886 is a critical memory corruption vulnerability in n/a, published on 18 Jun 2020. 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-2020-12886 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2020-12886/ (Markdown: https://insights.sbomify.com/CVE-2020-12886/index.md)","id":"CVE-2020-12886","markdown":"https://insights.sbomify.com/CVE-2020-12886/index.md","name":"CVE-2020-12886","record":{"aliases":["GHSA-8v45-9mw2-ffmm"],"analysis":{"component_type":"iot_embedded","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Mbed OS CoAP library","requires_auth":"none","summary":"A buffer over-read in the Mbed OS CoAP parser allows attackers to cause denial of service or disclose memory contents via crafted packets.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mbed_os","vendor":"arm"}],"cvss":{"score":9.1,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses the CoAP packet header starting from the message token. The length of the token in the received message is provided in the first byte parsed by the sn_coap_parser_options_parse() function. The length encoded in the message is not validated against the actual input buffer length before accessing the token. As a result, memory access outside of the intended boundary of the buffer may occur.","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":"Memory corruption in n/a","id":"CVE-2020-12886","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Integer overflow in n/a","id":"CVE-2020-12887"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2020-12885"},"products":["n/a"],"published":"2020-06-18","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-48984","kev_date_added":null,"published":"2024-11-20"},{"cvss_score":9.1,"headline":"Memory corruption in n/a","id":"CVE-2020-12883","kev_date_added":null,"published":"2020-06-18"},{"cvss_score":9.1,"headline":"Memory corruption in n/a","id":"CVE-2020-12884","kev_date_added":null,"published":"2020-06-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2020-12885","kev_date_added":null,"published":"2020-06-18"},{"cvss_score":7,"headline":"Memory corruption in n/a","id":"CVE-2024-22905","kev_date_added":null,"published":"2024-04-19"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"A buffer over-read in the Mbed OS CoAP parser allows attackers to cause denial of service or disclose memory contents via crafted packets.","url":"https://insights.sbomify.com/CVE-2020-12886/"}