{"answers":{"affected":"It affects 55 products.","exploited":"There is no known exploitation of CVE-2020-6989 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-6989 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-6989 is a critical memory corruption vulnerability in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower, published on 24 Mar 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-2020-6989 and fix it if it is affected.\n\nWhat it is: CVE-2020-6989 is a critical memory corruption vulnerability in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower, published on 24 Mar 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-2020-6989 in the wild and no public exploit code.\n\nAffected product: Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower. 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-2020-6989/ (Markdown: https://insights.sbomify.com/CVE-2020-6989/index.md)","id":"CVE-2020-6989","markdown":"https://insights.sbomify.com/CVE-2020-6989/index.md","name":"CVE-2020-6989","record":{"aliases":["GHSA-f3pg-xh2r-fcrw"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Moxa PT-7528/7828 firmware","requires_auth":"none","summary":"Remote attackers can exploit a buffer overflow in the web server to execute arbitrary code or cause denial of service on Moxa PT-7528 and PT-7828 devices.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"pt-7528-12msc-12tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-12msc-12tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-12msc-12tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-12msc-12tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-12mst-12tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-12mst-12tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-12mst-12tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-12mst-12tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-16msc-8tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-16msc-8tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-16msc-8tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-16msc-8tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-16mst-8tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-16mst-8tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-16mst-8tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-16mst-8tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-20msc-4tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-20msc-4tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-20msc-4tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-20msc-4tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-20mst-4tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-20mst-4tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-20mst-4tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-20mst-4tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-24tx-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-24tx-hv_firmware","vendor":"moxa"},{"product":"pt-7528-24tx-wv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-24tx-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-24tx-wv_firmware","vendor":"moxa"},{"product":"pt-7528-8msc-16tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-8msc-16tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-8msc-16tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-8msc-16tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-8mst-16tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-8mst-16tx-4gsfp-hv_firmware","vendor":"moxa"},{"product":"pt-7528-8mst-16tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7528-8mst-16tx-4gsfp-wv_firmware","vendor":"moxa"},{"product":"pt-7528-8ssc-16tx-4gsfp-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7528-8ssc-16tx-4gsfp-wv-wv_firmware","vendor":"moxa"},{"product":"pt-7828-f-24-24_firmware","vendor":"moxa"},{"product":"pt-7828-f-24-hv_firmware","vendor":"moxa"},{"product":"pt-7828-f-24_firmware","vendor":"moxa"},{"product":"pt-7828-f-48-48_firmware","vendor":"moxa"},{"product":"pt-7828-f-48-hv_firmware","vendor":"moxa"},{"product":"pt-7828-f-48_firmware","vendor":"moxa"},{"product":"pt-7828-f-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7828-f-hv_firmware","vendor":"moxa"},{"product":"pt-7828-r-24-24_firmware","vendor":"moxa"},{"product":"pt-7828-r-24-hv_firmware","vendor":"moxa"},{"product":"pt-7828-r-24_firmware","vendor":"moxa"},{"product":"pt-7828-r-48-48_firmware","vendor":"moxa"},{"product":"pt-7828-r-48-hv_firmware","vendor":"moxa"},{"product":"pt-7828-r-48_firmware","vendor":"moxa"},{"product":"pt-7828-r-hv-hv_firmware","vendor":"moxa"},{"product":"pt-7828-r-hv_firmware","vendor":"moxa"}],"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":"In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, a buffer overflow in the web server allows remote attackers to cause a denial-of-service condition or execute arbitrary code.","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 Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower","id":"CVE-2020-6989","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":"Hardcoded credentials in Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior","id":"CVE-2020-6990"},"packages":[],"prev":{"headline":"Information disclosure in Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior","id":"CVE-2020-6988"},"products":["Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower"],"published":"2020-03-24","related":[{"cvss_score":9.8,"headline":"Hardcoded credentials in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower","id":"CVE-2020-6985","kev_date_added":null,"published":"2020-03-24"},{"cvss_score":9.8,"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","kev_date_added":null,"published":"2020-03-24"},{"cvss_score":7.5,"headline":"Hardcoded credentials in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower","id":"CVE-2020-6983","kev_date_added":null,"published":"2020-03-24"},{"cvss_score":7.5,"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-2020-6987","kev_date_added":null,"published":"2020-03-24"},{"cvss_score":7.5,"headline":"Information disclosure in Moxa PT-7528 series firmware, Version 4.0 or lower, PT-7828 series firmware, Version 3.9 or lower","id":"CVE-2020-6993","kev_date_added":null,"published":"2020-03-24"}],"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":"Remote attackers can exploit a buffer overflow in the web server to execute arbitrary code or cause denial of service on Moxa PT-7528 and PT-7828 devices.","url":"https://insights.sbomify.com/CVE-2020-6989/"}