{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12239 exists.","fix":"No fix has been published for CVE-2025-12239 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-12239 is a high-severity memory corruption vulnerability in Totolink A3300r Firmware, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-12239 and fix it if it is affected.\n\nWhat it is: CVE-2025-12239 is a high-severity memory corruption vulnerability in Totolink A3300r Firmware, published on 27 Oct 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-2025-12239 exists.\n\nAffected product: Totolink A3300r Firmware. 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-2025-12239/ (Markdown: https://insights.sbomify.com/CVE-2025-12239/index.md)","id":"CVE-2025-12239","markdown":"https://insights.sbomify.com/CVE-2025-12239/index.md","name":"CVE-2025-12239","record":{"aliases":["GHSA-mqw5-rf2x-2m89"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"TOTOLINK router","requires_auth":"low_privilege","summary":"Remote attackers can exploit a buffer overflow in the DDNS configuration handler of TOTOLINK A3300R routers to execute arbitrary code or cause denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"a3300r_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 weakness has been identified in TOTOLINK A3300R 17.0.0cu.557_B20221024. The impacted element is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Executing manipulation can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be exploited.","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 A3300R cstecgi.cgi setDdnsCfg buffer overflow","id":"CVE-2025-12239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"totolink:a3300r_firmware","products":["totolink:a3300r_firmware"],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"TOTOLINK A3300R cstecgi.cgi setDmzCfg buffer overflow","id":"CVE-2025-12240"},"packages":[],"prev":{"headline":"code-projects Automated Voting System user.php sql injection","id":"CVE-2025-12238"},"products":["A3300R"],"published":"2025-10-27","related":[{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2026-31175","kev_date_added":null,"published":"2026-04-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2026-31177","kev_date_added":null,"published":"2026-04-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2026-31178","kev_date_added":null,"published":"2026-04-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2026-31181","kev_date_added":null,"published":"2026-04-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2026-31170","kev_date_added":null,"published":"2026-04-09"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2025-52046","kev_date_added":null,"published":"2025-07-17"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2024-24325","kev_date_added":null,"published":"2024-01-30"}],"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":"2025-10-27","vendors":["TOTOLINK"]},"summary":"Remote attackers can exploit a buffer overflow in the DDNS configuration handler of TOTOLINK A3300R routers to execute arbitrary code or cause denial of service.","url":"https://insights.sbomify.com/CVE-2025-12239/"}