{"answers":{"affected":"It affects 14 products.","exploited":"There is no known exploitation of CVE-2025-0890 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-0890 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-0890 is a critical vulnerability in Zyxel VMG4325-B10A firmware, published on 4 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-0890 and fix it if it is affected.\n\nWhat it is: CVE-2025-0890 is a critical vulnerability in Zyxel VMG4325-B10A firmware, published on 4 Feb 2025. 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-2025-0890 in the wild and no public exploit code.\n\nAffected product: Zyxel VMG4325-B10A 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-2025-0890/ (Markdown: https://insights.sbomify.com/CVE-2025-0890/index.md)","id":"CVE-2025-0890","markdown":"https://insights.sbomify.com/CVE-2025-0890/index.md","name":"CVE-2025-0890","record":{"aliases":["GHSA-q2vf-jq2x-689c"],"analysis":{"component_type":"network_device","fix_type":"configuration_change","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"DSL CPE firmware","requires_auth":"none","summary":"Attackers can log in to the management interface using insecure default Telnet credentials if administrators fail to change them.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Zyxel","cpe":[{"product":"sbg3300-n000_firmware","vendor":"zyxel"},{"product":"sbg3300-nb00_firmware","vendor":"zyxel"},{"product":"sbg3500-n000_firmware","vendor":"zyxel"},{"product":"sbg3500-nb00_firmware","vendor":"zyxel"},{"product":"vmg1312-b10a_firmware","vendor":"zyxel"},{"product":"vmg1312-b10b_firmware","vendor":"zyxel"},{"product":"vmg1312-b10e_firmware","vendor":"zyxel"},{"product":"vmg3312-b10a_firmware","vendor":"zyxel"},{"product":"vmg3313-b10a_firmware","vendor":"zyxel"},{"product":"vmg3926-b10b_firmware","vendor":"zyxel"},{"product":"vmg4325-b10a_firmware","vendor":"zyxel"},{"product":"vmg4380-b10a_firmware","vendor":"zyxel"},{"product":"vmg8324-b10a_firmware","vendor":"zyxel"},{"product":"vmg8924-b10a_firmware","vendor":"zyxel"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-522","name":"Insufficiently Protected Credentials"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"**UNSUPPORTED WHEN ASSIGNED**\nInsecure default credentials for the Telnet function in the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an attacker to log in to the management interface if the administrators have the option to change the default credentials but fail to do so.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-08-13","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-08-13T19:47:46Z","kind":"github_poc","ref":"https://github.com/Danyw24/zyxel-p870hn-hardware-hacking","stars":0,"title":"From a bare PCB to root: hardware-hacking a ZyXEL P-870HN (BCM6368) over UART — CVE-2025-0890 + CVE-2024-40891, on my own hardware."}],"tier":"poc_unverified"},"has_fix":null,"headline":"Hardcoded credentials in VMG4325-B10A firmware","id":"CVE-2025-0890","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Symantec Diagnostic Tool (SymDiag), prior to 3.0.79, may be susceptible to a Privilege Escalation vulnerability.","id":"CVE-2025-0893"},"packages":[],"prev":{"headline":"Privilege Management for Windows – Elevation of Privilege","id":"CVE-2025-0889"},"products":["VMG4325-B10A firmware"],"published":"2025-02-04","related":[{"cvss_score":8.8,"headline":"Zyxel DSL CPE OS Command Injection","id":"CVE-2024-40890","kev_date_added":"2025-02-11","published":"2025-02-04"},{"cvss_score":8.8,"headline":"Zyxel DSL CPE OS Command Injection","id":"CVE-2024-40891","kev_date_added":"2025-02-11","published":"2025-02-04"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-12","vendors":["Zyxel"]},"summary":"Attackers can log in to the management interface using insecure default Telnet credentials if administrators fail to change them.","url":"https://insights.sbomify.com/CVE-2025-0890/"}