{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7837 exists.","fix":"No fix has been published for CVE-2025-7837 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-7837 is a high-severity memory corruption vulnerability in TOTOLINK T6, published on 19 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-7837 and fix it if it is affected.\n\nWhat it is: CVE-2025-7837 is a high-severity memory corruption vulnerability in TOTOLINK T6, published on 19 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7837 exists.\n\nAffected product: TOTOLINK T6. 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-2025-7837/ (Markdown: https://insights.sbomify.com/CVE-2025-7837/index.md)","id":"CVE-2025-7837","markdown":"https://insights.sbomify.com/CVE-2025-7837/index.md","name":"CVE-2025-7837","record":{"aliases":["GHSA-qxfq-qf96-fww5"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"TOTOLINK T6 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a buffer overflow in the MQTT service of TOTOLINK T6 devices, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"t6_firmware","vendor":"totolink"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015 and classified as critical. Affected by this issue is the function recvSlaveStaInfo of the component MQTT Service. The manipulation of the argument dest leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"TOTOLINK T6 MQTT Service recvSlaveStaInfo buffer overflow","id":"CVE-2025-7837","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"Campcodes Online Movie Theater Seat Reservation System manage_seat.php sql injection","id":"CVE-2025-7838"},"packages":[],"prev":{"headline":"D-Link DIR-816L Environment Variable cgibin lxmldbc_system command injection","id":"CVE-2025-7836"},"products":["T6"],"published":"2025-07-19","related":[{"cvss_score":9.8,"headline":"Totolink T6 HTTP POST Request main buffer overflow","id":"CVE-2023-7221","kev_date_added":null,"published":"2024-01-09"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2022-38823","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-38826","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-38827","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-38828","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-25084","kev_date_added":null,"published":"2022-02-22"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-25133","kev_date_added":null,"published":"2022-02-18"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-07-21","vendors":["TOTOLINK"]},"summary":"Remote attackers can trigger a buffer overflow in the MQTT service of TOTOLINK T6 devices, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2025-7837/"}