{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40031 exists.","fix":"No fix has been published for CVE-2023-40031 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-40031 is a high-severity memory corruption vulnerability in notepad-plus-plus, published on 25 Aug 2023. 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-2023-40031 and fix it if it is affected.\n\nWhat it is: CVE-2023-40031 is a high-severity memory corruption vulnerability in notepad-plus-plus, published on 25 Aug 2023. 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-2023-40031 exists.\n\nAffected product: notepad-plus-plus. 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-2023-40031/ (Markdown: https://insights.sbomify.com/CVE-2023-40031/index.md)","id":"CVE-2023-40031","markdown":"https://insights.sbomify.com/CVE-2023-40031/index.md","name":"CVE-2023-40031","record":{"aliases":[],"analysis":{"component_type":"desktop_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Notepad++ text editor","requires_auth":"none","summary":"A heap buffer overflow in Notepad++ allows arbitrary code execution, posing a risk to users opening malicious files.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"notepad\\+\\+","vendor":"notepad-plus-plus"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"},{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of publication, no known patches are available in existing versions of Notepad++.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-09-08","github_poc":1,"max_poc_stars":15,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-09-08T05:43:12Z","kind":"github_poc","ref":"https://github.com/webraybtl/CVE-2023-40031","stars":15,"title":"notepad++堆缓冲区溢出漏洞CVE-2023-40031 分析与复现"}],"tier":"weaponised"},"has_fix":false,"headline":"Notepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert","id":"CVE-2023-40031","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Potential segfault due to NULL pointer dereference in libvips","id":"CVE-2023-40032"},"packages":[],"prev":{"headline":"Malicious dependencies can inject arbitrary JavaScript into cargo-generated timing reports","id":"CVE-2023-40030"},"products":["notepad-plus-plus"],"published":"2023-08-25","related":[{"cvss_score":7.7,"headline":"Notepad++ Download of Code Without Integrity Check","id":"CVE-2025-15556","kev_date_added":"2026-02-12","published":"2026-02-03"},{"cvss_score":7.8,"headline":"Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter","id":"CVE-2026-48778","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection","id":"CVE-2026-48800","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Notepad++: CVE-2026-48800 Bypass","id":"CVE-2026-52884","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":7.8,"headline":"Privilege escalation in n/a","id":"CVE-2023-47452","kev_date_added":null,"published":"2023-11-30"},{"cvss_score":7.8,"headline":"notepad-plus-plus - DLL Hijacking","id":"CVE-2022-32168","kev_date_added":null,"published":"2022-09-28"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-10-02","vendors":["notepad-plus-plus"]},"summary":"A heap buffer overflow in Notepad++ allows arbitrary code execution, posing a risk to users opening malicious files.","url":"https://insights.sbomify.com/CVE-2023-40031/"}