{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-6996 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-6996 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-6996 is a critical memory corruption vulnerability in Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01, published on 15 Apr 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-2020-6996 and fix it if it is affected.\n\nWhat it is: CVE-2020-6996 is a critical memory corruption vulnerability in Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01, published on 15 Apr 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-2020-6996 in the wild and no public exploit code.\n\nAffected product: Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01. 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-2020-6996/ (Markdown: https://insights.sbomify.com/CVE-2020-6996/index.md)","id":"CVE-2020-6996","markdown":"https://insights.sbomify.com/CVE-2020-6996/index.md","name":"CVE-2020-6996","record":{"aliases":["GHSA-mx68-p78j-fv2c"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNP3 Outstation Library","requires_auth":"none","summary":"A stack-based buffer overflow in Triangle MicroWorks DNP3 libraries allows remote attackers to execute arbitrary code or cause denial of service without authentication.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"dnp3_source_code_library","vendor":"trianglemicroworks"}],"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-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01. A specially crafted message may cause a stack-based buffer overflow. Authentication is not required to exploit this vulnerability.","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 Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01","id":"CVE-2020-6996","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in Moxa EDS-G516E Series firmware, Version 5.2 or lower","id":"CVE-2020-6997"},"packages":[],"prev":{"headline":"Weak cryptography in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower","id":"CVE-2020-6995"},"products":["Triangle MicroWorks DNP3 Outstation LibrariesDNP3 Outstation .NET Protocol components and DNP3 Outstation ANSI C source code libraries are affected:3.16.00 through 3.25.01"],"published":"2020-04-15","related":[],"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 stack-based buffer overflow in Triangle MicroWorks DNP3 libraries allows remote attackers to execute arbitrary code or cause denial of service without authentication.","url":"https://insights.sbomify.com/CVE-2020-6996/"}