{"answers":{"affected":"It affects 21 products.","exploited":"There is no known exploitation of CVE-2026-4621 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4621 is a medium-severity vulnerability in NEC Platforms, Ltd. Aterm GB1200PE, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4621 and fix it if it is affected.\n\nWhat it is: CVE-2026-4621 is a medium-severity vulnerability in NEC Platforms, Ltd. Aterm GB1200PE, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-4621 in the wild and no public exploit code.\n\nAffected product: NEC Platforms, Ltd. Aterm GB1200PE. 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-2026-4621/ (Markdown: https://insights.sbomify.com/CVE-2026-4621/index.md)","id":"CVE-2026-4621","markdown":"https://insights.sbomify.com/CVE-2026-4621/index.md","name":"CVE-2026-4621","record":{"aliases":["GHSA-v782-gww8-28q2"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"NEC Aterm router","requires_auth":"none","summary":"Attackers can enable hidden telnet access on NEC Aterm routers, potentially leading to unauthorized remote control and code execution.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NEC","cpe":[{"product":"aterm_w1200ex-ms_firmware","vendor":"nec"},{"product":"aterm_wf1200cr_firmware","vendor":"nec"},{"product":"aterm_wg1200cr_firmware","vendor":"nec"},{"product":"aterm_wg1200hp2_firmware","vendor":"nec"},{"product":"aterm_wg1200hp3_firmware","vendor":"nec"},{"product":"aterm_wg1200hp4_firmware","vendor":"nec"},{"product":"aterm_wg1200hs2_firmware","vendor":"nec"},{"product":"aterm_wg1200hs3_firmware","vendor":"nec"},{"product":"aterm_wg1200hs4_firmware","vendor":"nec"},{"product":"aterm_wg1800hp3_firmware","vendor":"nec"},{"product":"aterm_wg1800hp4_firmware","vendor":"nec"},{"product":"aterm_wg1900hp2_firmware","vendor":"nec"},{"product":"aterm_wg1900hp_firmware","vendor":"nec"},{"product":"aterm_wg2600hm4_firmware","vendor":"nec"},{"product":"aterm_wg2600hp4_firmware","vendor":"nec"},{"product":"aterm_wg2600hs2_firmware","vendor":"nec"},{"product":"aterm_wg2600hs_firmware","vendor":"nec"},{"product":"aterm_wx1500hp_firmware","vendor":"nec"},{"product":"aterm_wx3000hp2_firmware","vendor":"nec"},{"product":"aterm_wx3000hp_firmware","vendor":"nec"},{"product":"aterm_wx3600hp_firmware","vendor":"nec"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-912","name":"Hidden Functionality"}],"description":"Hidden Functionality vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to enable telnet via network.","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":"Security feature bypass in Aterm GB1200PE","id":"CVE-2026-4621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in Aterm GB1200PE","id":"CVE-2026-4622"},"packages":[],"prev":{"headline":"Command injection in Aterm WX1500HP","id":"CVE-2026-4620"},"products":["Aterm GB1200PE","Aterm GX1200HP","Aterm GX1200HS4","Aterm W1200EX(-MS)","Aterm WF1200CR","Aterm WG1200CR","Aterm WG1200DM4","Aterm WG1200HP2","Aterm WG1200HP3","Aterm WG1200HP4","Aterm WG1200HS2","Aterm WG1200HS3","Aterm WG1200HS4","Aterm WG1800HP3","Aterm WG1800HP4","Aterm WG1900HP","Aterm WG1900HP2","Aterm WG2600HM4","Aterm WG2600HP4","Aterm WG2600HS","Aterm WG2600HS2","Aterm WX1500HP","Aterm WX3000HP","Aterm WX3000HP2","Aterm WX3600HP"],"published":"2026-03-27","related":[{"cvss_score":6.3,"headline":"Missing authorization in Aterm GB1200PE","id":"CVE-2026-4309","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":6.1,"headline":"Cross-site scripting in NEC Aterm devices","id":"CVE-2021-20680","kev_date_added":null,"published":"2021-04-26"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-10","vendors":["NEC Platforms, Ltd."]},"summary":"Attackers can enable hidden telnet access on NEC Aterm routers, potentially leading to unauthorized remote control and code execution.","url":"https://insights.sbomify.com/CVE-2026-4621/"}