{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8138 exists.","fix":"No fix has been published for CVE-2026-8138 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-8138 is a high-severity memory corruption vulnerability in Tenda CX12L, published on 8 May 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-8138 and fix it if it is affected.\n\nWhat it is: CVE-2026-8138 is a high-severity memory corruption vulnerability in Tenda CX12L, published on 8 May 2026. 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-2026-8138 exists.\n\nAffected product: Tenda CX12L. 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-2026-8138/ (Markdown: https://insights.sbomify.com/CVE-2026-8138/index.md)","id":"CVE-2026-8138","markdown":"https://insights.sbomify.com/CVE-2026-8138/index.md","name":"CVE-2026-8138","record":{"aliases":["GHSA-v5fc-fw74-r356"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda CX12L router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in the Tenda CX12L router's PPTP server configuration handler, potentially leading to arbitrary code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"cx12l_firmware","vendor":"tenda"}],"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-121","name":"Stack-based Buffer Overflow"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was found in Tenda CX12L 16.03.53.12. This issue affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg”. The manipulation results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could 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":"Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow","id":"CVE-2026-8138","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via external-link page cvName","id":"CVE-2026-8139"},"packages":[],"prev":{"headline":"Totolink X5000R formDdns sub_458E40 buffer overflow","id":"CVE-2026-8137"},"products":["CX12L"],"published":"2026-05-08","related":[{"cvss_score":8.7,"headline":"Tenda CX12L addressNat fromAddressNat stack-based overflow","id":"CVE-2026-5685","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":8.7,"headline":"Tenda CX12L RouteStatic fromRouteStatic stack-based overflow","id":"CVE-2026-5686","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":8.7,"headline":"Tenda CX12L NatStaticSetting fromNatStaticSetting stack-based overflow","id":"CVE-2026-5687","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":8.6,"headline":"Tenda CX12L webExcptypemanFilter fromwebExcptypemanFilter stack-based overflow","id":"CVE-2026-5684","kev_date_added":null,"published":"2026-04-06"},{"cvss_score":5.1,"headline":"Tenda CX12L P2pListFilter fromP2pListFilter stack-based overflow","id":"CVE-2026-5683","kev_date_added":null,"published":"2026-04-06"}],"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":"total"},"state":"PUBLISHED","updated":"2026-05-08","vendors":["Tenda"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the Tenda CX12L router's PPTP server configuration handler, potentially leading to arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2026-8138/"}