{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77977 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-77977 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-77977 is a high-severity missing authorization vulnerability in Ebyte NA111-M Firmware, published on 27 Aug 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-2026-77977 and fix it if it is affected.\n\nWhat it is: CVE-2026-77977 is a high-severity missing authorization vulnerability in Ebyte NA111-M Firmware, published on 27 Aug 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-2026-77977 in the wild and no public exploit code.\n\nAffected product: Ebyte NA111-M 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-2026-77977/ (Markdown: https://insights.sbomify.com/CVE-2026-77977/index.md)","id":"CVE-2026-77977","markdown":"https://insights.sbomify.com/CVE-2026-77977/index.md","name":"CVE-2026-77977","record":{"aliases":["GHSA-8g5x-wgwr-8jwp"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["denial_of_service","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Ebyte gateway firmware","requires_auth":"none","summary":"Unauthenticated attackers on the adjacent network can reboot the device or restore factory settings, causing service disruption and configuration loss.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"Ebyte gateway product's vendor configuration utility does not require authentication before \nallowing certain disruptive administrative actions when default \ncredentials remain configured. An unauthenticated attacker on the \nadjacent network could reboot the device or restore factory settings, \nresulting in a loss of configuration and service availability.","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":"Ebyte NA111-M Missing Authentication for Critical Function","id":"CVE-2026-77977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"GitHub Enterprise Server notebook viewer vulnerable to Server-side request forgery","id":"CVE-2026-77987"},"packages":[],"prev":{"headline":"Ebyte NA111-M Cleartext Storage of Sensitive Information","id":"CVE-2026-77975"},"products":["Ebyte NA111-M Firmware"],"published":"2026-08-27","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":"partial"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["Ebyte"]},"summary":"Unauthenticated attackers on the adjacent network can reboot the device or restore factory settings, causing service disruption and configuration loss.","url":"https://insights.sbomify.com/CVE-2026-77977/"}