{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-3981 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-3981 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-3981 is a low-severity vulnerability in Mikrotik Routeros, published on 14 Jan 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-2019-3981 and fix it if it is affected.\n\nWhat it is: CVE-2019-3981 is a low-severity vulnerability in Mikrotik Routeros, published on 14 Jan 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-2019-3981 in the wild and no public exploit code.\n\nAffected product: Mikrotik Routeros. 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-2019-3981/ (Markdown: https://insights.sbomify.com/CVE-2019-3981/index.md)","id":"CVE-2019-3981","markdown":"https://insights.sbomify.com/CVE-2019-3981/index.md","name":"CVE-2019-3981","record":{"aliases":["GHSA-pg5r-4rf5-r7hv"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MikroTik Winbox client","requires_auth":"none","summary":"Man-in-the-middle attackers can downgrade authentication to recover user credentials, requiring users to upgrade the Winbox client.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"tenable","cpe":[{"product":"routeros","vendor":"mikrotik"},{"product":"winbox","vendor":"mikrotik"}],"cvss":{"score":3.7,"severity":"low","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-300","name":"Channel Accessible by Non-Endpoint"}],"description":"MikroTik Winbox 3.20 and below is vulnerable to man in the middle attacks. A man in the middle can downgrade the client's authentication protocol and recover the user's username and MD5 hashed password.","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":"Weak cryptography in WinBox","id":"CVE-2019-3981","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mikrotik:routeros","products":["mikrotik:routeros"],"type":"weak_cryptography","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Tenable Nessus","id":"CVE-2019-3982"},"packages":[],"prev":{"headline":"File upload in SolarWinds Dameware Remote Mini Remote Client Agent Service","id":"CVE-2019-3980"},"products":["WinBox"],"published":"2020-01-14","related":[{"cvss_score":9.8,"headline":"MikroTik RouterOS Stack-Based Buffer Overflow","id":"CVE-2018-7445","kev_date_added":"2022-09-08","published":"2018-03-19"},{"cvss_score":9.2,"headline":"MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command","id":"CVE-2026-86060","kev_date_added":"2026-09-10","published":"2026-09-05"},{"cvss_score":9.1,"headline":"MikroTik Router OS Directory Traversal","id":"CVE-2018-14847","kev_date_added":"2021-12-01","published":"2018-08-02"},{"cvss_score":8.8,"headline":"MikroTik RouterOS Missing Authentication for Critical Function","id":"CVE-2026-67277","kev_date_added":"2026-09-10","published":"2026-09-05"},{"cvss_score":6.9,"headline":"Mikrotik RouterOS Improper Enforcement of Behavioral Workflow","id":"CVE-2026-67279","kev_date_added":"2026-09-25","published":"2026-09-05"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-20149","kev_date_added":null,"published":"2022-10-15"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2022-34960","kev_date_added":null,"published":"2022-08-25"}],"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":["MikroTik"]},"summary":"Man-in-the-middle attackers can downgrade authentication to recover user credentials, requiring users to upgrade the Winbox client.","url":"https://insights.sbomify.com/CVE-2019-3981/"}