{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-15645 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-15645 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-15645 is a medium-severity denial of service vulnerability in Ledger Flex, published on 19 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-15645 and fix it if it is affected.\n\nWhat it is: CVE-2025-15645 is a medium-severity denial of service vulnerability in Ledger Flex, published on 19 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-15645 in the wild and no public exploit code.\n\nAffected product: Ledger Flex. 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-2025-15645/ (Markdown: https://insights.sbomify.com/CVE-2025-15645/index.md)","id":"CVE-2025-15645","markdown":"https://insights.sbomify.com/CVE-2025-15645/index.md","name":"CVE-2025-15645","record":{"aliases":["GHSA-jj3m-33jh-v459"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Ledger hardware wallet","requires_auth":"none","summary":"Attackers can cause permanent device bricking during firmware updates by exploiting missing validation of the reset handler address in Ledger hardware wallets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1284","name":"Improper Validation of Specified Quantity in Input"}],"description":"Ledger Nano X, Flex, and Stax devices contain a denial of service vulnerability in the MCU firmware update process due to missing validation of the reset_handler parameter during firmware flashing. An attacker can provide a crafted reset_handler address pointing to invalid memory or attacker-controlled code to cause the device to enter an unrecoverable fault state during boot, resulting in permanent loss of operability.","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":"Ledger Nano X, Flex, Stax MCU Firmware Update Denial of Service","id":"CVE-2025-15645","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"HTML::Gumbo versions before 0.19 for Perl disclose heap memory via type confusion","id":"CVE-2025-15646"},"packages":[],"prev":{"headline":"WordPress Adsmonetizer plugin \u003c= 3.2.4 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2025-15643"},"products":["Ledger Flex","Ledger Nano X","Ledger Stax"],"published":"2026-05-19","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["Ledger"]},"summary":"Attackers can cause permanent device bricking during firmware updates by exploiting missing validation of the reset handler address in Ledger hardware wallets.","url":"https://insights.sbomify.com/CVE-2025-15645/"}