{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37121 exists.","fix":"No fix has been published for CVE-2020-37121 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-37121 is a medium-severity memory corruption vulnerability in Code::Blocks, published on 5 Feb 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-2020-37121 and fix it if it is affected.\n\nWhat it is: CVE-2020-37121 is a medium-severity memory corruption vulnerability in Code::Blocks, published on 5 Feb 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-2020-37121 exists.\n\nAffected product: Code::Blocks. 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-2020-37121/ (Markdown: https://insights.sbomify.com/CVE-2020-37121/index.md)","id":"CVE-2020-37121","markdown":"https://insights.sbomify.com/CVE-2020-37121/index.md","name":"CVE-2020-37121","record":{"aliases":["GHSA-77vf-q3xf-37g8","UBUNTU-CVE-2020-37121"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Code::Blocks IDE","requires_auth":"none","summary":"Attackers can execute arbitrary code by tricking users into opening a malicious text file in Code::Blocks, exploiting a buffer overflow.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"CODE::BLOCKS 16.01 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler with crafted Unicode characters. Attackers can create a malicious text file with 1982 bytes of buffer and shellcode to trigger remote code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"CODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODE","id":"CVE-2020-37121","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":"SpotFTP-FTP Password Recover 2.4.8 - Denial of Service","id":"CVE-2020-37122"},"packages":[],"prev":{"headline":"Rubo DICOM Viewer 2.0 - Buffer Overflow (SEH)","id":"CVE-2020-37120"},"products":["Code::Blocks"],"published":"2026-02-05","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-06","vendors":["Code::Blocks"]},"summary":"Attackers can execute arbitrary code by tricking users into opening a malicious text file in Code::Blocks, exploiting a buffer overflow.","url":"https://insights.sbomify.com/CVE-2020-37121/"}