{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2022-34840 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-34840 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-34840 is a medium-severity vulnerability in Buffalo network devices, published on 7 Dec 2022. 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-2022-34840 and fix it if it is affected.\n\nWhat it is: CVE-2022-34840 is a medium-severity vulnerability in Buffalo network devices, published on 7 Dec 2022. 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-2022-34840 in the wild and no public exploit code.\n\nAffected product: Buffalo network devices. 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-2022-34840/ (Markdown: https://insights.sbomify.com/CVE-2022-34840/index.md)","id":"CVE-2022-34840","markdown":"https://insights.sbomify.com/CVE-2022-34840/index.md","name":"CVE-2022-34840","record":{"aliases":["GHSA-pgrg-rvjm-c6vq"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Buffalo network devices","requires_auth":"none","summary":"A network-adjacent attacker can use hard-coded credentials to alter configuration settings on multiple Buffalo network devices.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"hw-450hp-zwe_firmware","vendor":"buffalo"},{"product":"wzr-300hp_firmware","vendor":"buffalo"},{"product":"wzr-450hp-cwt_firmware","vendor":"buffalo"},{"product":"wzr-450hp-ub_firmware","vendor":"buffalo"},{"product":"wzr-450hp_firmware","vendor":"buffalo"},{"product":"wzr-600dhp2_firmware","vendor":"buffalo"},{"product":"wzr-600dhp_firmware","vendor":"buffalo"},{"product":"wzr-900dhp_firmware","vendor":"buffalo"},{"product":"wzr-d1100h_firmware","vendor":"buffalo"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"}],"description":"Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.","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":"Hardcoded credentials in Buffalo network devices","id":"CVE-2022-34840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2022"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in Intel(R) Media SDK software","id":"CVE-2022-34841"},"packages":[],"prev":{"headline":"WordPress WP OAuth2 Server plugin \u003c= 1.0.1 - Authentication Bypass vulnerability","id":"CVE-2022-34839"},"products":["Buffalo network devices"],"published":"2022-12-07","related":[],"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":"2025-04-23","vendors":["BUFFALO INC."]},"summary":"A network-adjacent attacker can use hard-coded credentials to alter configuration settings on multiple Buffalo network devices.","url":"https://insights.sbomify.com/CVE-2022-34840/"}