{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12495 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12495 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12495 is a medium-severity memory corruption vulnerability in Mercusys MB115-4G, published on 27 Jul 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-2026-12495 and fix it if it is affected.\n\nWhat it is: CVE-2026-12495 is a medium-severity memory corruption vulnerability in Mercusys MB115-4G, published on 27 Jul 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-2026-12495 in the wild and no public exploit code.\n\nAffected product: Mercusys MB115-4G. 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-2026-12495/ (Markdown: https://insights.sbomify.com/CVE-2026-12495/index.md)","id":"CVE-2026-12495","markdown":"https://insights.sbomify.com/CVE-2026-12495/index.md","name":"CVE-2026-12495","record":{"aliases":["GHSA-f8cq-j6x7-pfpx"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"4G router","requires_auth":"none","summary":"Unauthenticated attackers can crash the web administration service of Mercusys MB115-4G routers via a stack buffer overflow in the login endpoint.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"Denial-of-service (DoS) vulnerability due to a stack buffer overflow in the http_gdpr_decrypt function of the Mercusys MB115-4G device's web interface. An unauthenticated attacker could exploit this vulnerability by sending a specially crafted request to the /cgi/login endpoint, causing memory corruption and the httpd process to crash, resulting in a denial of service for the web administration service.","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":"Stack-Based Buffer Overflow in the Mercusys MB115-4G","id":"CVE-2026-12495","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Loytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA server","id":"CVE-2026-12496"},"packages":[],"prev":{"headline":"Clover Payment Gateway by Zaytech for WooCommerce \u003c 1.3.6 - Unauthenticated Payment Bypass via check_order","id":"CVE-2026-12493"},"products":["MB115-4G"],"published":"2026-07-27","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":"total"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Mercusys"]},"summary":"Unauthenticated attackers can crash the web administration service of Mercusys MB115-4G routers via a stack buffer overflow in the login endpoint.","url":"https://insights.sbomify.com/CVE-2026-12495/"}