{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2025-15556 in the wild since at least 12 Feb 2026.","fix":"No fix has been published for CVE-2025-15556 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 5 Mar 2026.","what":"CVE-2025-15556 is a high-severity vulnerability in notepad-plus-plus, published on 3 Feb 2026."},"fix_prompt":"Check this codebase for CVE-2025-15556 and fix it if it is affected.\n\nWhat it is: CVE-2025-15556 is a high-severity vulnerability in notepad-plus-plus, published on 3 Feb 2026. \nExploitation: Yes. Attackers have exploited CVE-2025-15556 in the wild since at least 12 Feb 2026.\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-2025-15556/ (Markdown: https://insights.sbomify.com/CVE-2025-15556/index.md)","id":"CVE-2025-15556","markdown":"https://insights.sbomify.com/CVE-2025-15556/index.md","name":"CVE-2025-15556","record":{"aliases":["GHSA-cqx4-h5ph-3xj9"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[{"product":"notepad\\+\\+","vendor":"notepad-plus-plus"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-494","name":"Download of Code Without Integrity Check"}],"description":"Notepad++ versions prior to 8.8.9, when using the WinGUp updater, contain an update integrity verification vulnerability where downloaded update metadata and installers are not cryptographically verified. An attacker able to intercept or redirect update traffic can cause the updater to download and execute an attacker-controlled installer, resulting in arbitrary code execution with the privileges of the user.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-02-09","github_poc":2,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-02-09T12:38:24Z","kind":"github_poc","ref":"https://github.com/renat0z3r0/notepadpp-supply-chain-iocs","stars":1,"title":"IoCs and detection rules for the Notepad++ supply chain attack (CVE-2025-15556) — Lotus Blossom APT, June–December 2025. Includes Falcon LogScale queries, YARA/Sigma rules, and MITRE ATT\u0026CK mapping."},{"date":"2026-02-10T00:23:48Z","kind":"github_poc","ref":"https://github.com/George0Papasotiriou/CVE-2025-15556-Notepad-WinGUp-Updater-RCE","stars":1,"title":null}],"tier":"exploited"},"has_fix":false,"headline":"Notepad++ Download of Code Without Integrity Check","id":"CVE-2025-15556","indexable":true,"kev":{"dateAdded":"2026-02-12","dueDate":"2026-03-05","knownRansomwareCampaignUse":"Unknown","product":"Notepad++","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Notepad++","vulnerabilityName":"Notepad++ Download of Code Without Integrity Check Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"Improper Certificate Validation in TP-Link Tapo H100 and P100 Allows Man-in-the-Middle Attack","id":"CVE-2025-15557"},"packages":[],"prev":{"headline":"Open5GS VoLTE Cx-Test hss-cx-path.c hss_ogs_diam_cx_mar_cb stack-based overflow","id":"CVE-2025-15555"},"products":["notepad-plus-plus"],"published":"2026-02-03","related":[{"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++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert","id":"CVE-2023-40031","kev_date_added":null,"published":"2023-08-25"},{"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"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":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-05","vendors":["notepad-plus-plus"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2025-15556/"}