{"answers":{"affected":"It affects 18 products.","exploited":"There is no known exploitation of CVE-2021-35977 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-35977 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-35977 is a critical memory corruption vulnerability in n/a, published on 8 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-35977 and fix it if it is affected.\n\nWhat it is: CVE-2021-35977 is a critical memory corruption vulnerability in n/a, published on 8 Oct 2021. 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-2021-35977 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-2021-35977/ (Markdown: https://insights.sbomify.com/CVE-2021-35977/index.md)","id":"CVE-2021-35977","markdown":"https://insights.sbomify.com/CVE-2021-35977/index.md","name":"CVE-2021-35977","record":{"aliases":["GHSA-g5mc-mhmx-jqjp"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Digi RealPort Windows","requires_auth":"none","summary":"A buffer overflow in Digi RealPort for Windows allows arbitrary code execution via crafted ADDP discovery response messages.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"6350-sr_firmware","vendor":"digi"},{"product":"cm_firmware","vendor":"digi"},{"product":"connect_es_firmware","vendor":"digi"},{"product":"connectport_lts_8\\/16\\/32_firmware","vendor":"digi"},{"product":"connectport_ts_8\\/16_firmware","vendor":"digi"},{"product":"one_ia_firmware","vendor":"digi"},{"product":"one_iap_family_firmware","vendor":"digi"},{"product":"passport_integrated_console_server_firmware","vendor":"digi"},{"product":"portserver_ts_firmware","vendor":"digi"},{"product":"portserver_ts_m_mei_firmware","vendor":"digi"},{"product":"portserver_ts_mei_firmware","vendor":"digi"},{"product":"portserver_ts_mei_hardened_firmware","vendor":"digi"},{"product":"portserver_ts_p_mei_firmware","vendor":"digi"},{"product":"realport","vendor":"digi"},{"product":"transport_wr11_xt_firmware","vendor":"digi"},{"product":"wr21_firmware","vendor":"digi"},{"product":"wr31_firmware","vendor":"digi"},{"product":"wr44_r_firmware","vendor":"digi"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"An issue was discovered in Digi RealPort for Windows through 4.8.488.0. A buffer overflow exists in the handling of ADDP discovery response messages. This could result in arbitrary code execution.","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-2021-35977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in n/a","id":"CVE-2021-35978"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-35976"},"products":["n/a"],"published":"2021-10-08","related":[{"cvss_score":9.8,"headline":"Weak cryptography in n/a","id":"CVE-2021-36767","kev_date_added":null,"published":"2021-10-08"},{"cvss_score":8.1,"headline":"Auth bypass in n/a","id":"CVE-2021-35979","kev_date_added":null,"published":"2021-10-08"}],"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 overflow in Digi RealPort for Windows allows arbitrary code execution via crafted ADDP discovery response messages.","url":"https://insights.sbomify.com/CVE-2021-35977/"}