{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36997 exists.","fix":"No fix has been published for CVE-2020-36997 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-36997 is a high-severity memory corruption vulnerability in Dummysoftware BacklinkSpeed, published on 29 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-36997 and fix it if it is affected.\n\nWhat it is: CVE-2020-36997 is a high-severity memory corruption vulnerability in Dummysoftware BacklinkSpeed, published on 29 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36997 exists.\n\nAffected product: Dummysoftware BacklinkSpeed. 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-2020-36997/ (Markdown: https://insights.sbomify.com/CVE-2020-36997/index.md)","id":"CVE-2020-36997","markdown":"https://insights.sbomify.com/CVE-2020-36997/index.md","name":"CVE-2020-36997","record":{"aliases":["GHSA-mrjv-54cc-hwh4"],"analysis":{"component_type":"desktop_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"SEO tool","requires_auth":"none","summary":"Attackers can execute arbitrary code by exploiting a buffer overflow in BacklinkSpeed via a malicious file import.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"BacklinkSpeed 2.4 contains a buffer overflow vulnerability that allows attackers to corrupt the Structured Exception Handler (SEH) chain through malicious file import. Attackers can craft a specially designed payload file to overwrite SEH addresses, potentially executing arbitrary code and gaining control of the application.","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":"BacklinkSpeed 2.4 - Buffer Overflow PoC (SEH)","id":"CVE-2020-36997","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":4,"next":{"headline":"forma.lms The E-Learning Suite 2.3.0.2 - Persistent Cross-Site Scripting","id":"CVE-2020-36998"},"packages":[],"prev":{"headline":"PHPFusion 9.03.50 - Persistent Cross-Site Scripting","id":"CVE-2020-36996"},"products":["BacklinkSpeed"],"published":"2026-01-29","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-12","vendors":["Dummysoftware"]},"summary":"Attackers can execute arbitrary code by exploiting a buffer overflow in BacklinkSpeed via a malicious file import.","url":"https://insights.sbomify.com/CVE-2020-36997/"}