{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-25811 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-25811 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-25811 is a high-severity denial of service vulnerability in n/a, published on 29 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25811 and fix it if it is affected.\n\nWhat it is: CVE-2021-25811 is a high-severity denial of service vulnerability in n/a, published on 29 Apr 2021. 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-2021-25811 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-25811/ (Markdown: https://insights.sbomify.com/CVE-2021-25811/index.md)","id":"CVE-2021-25811","markdown":"https://insights.sbomify.com/CVE-2021-25811/index.md","name":"CVE-2021-25811","record":{"aliases":["GHSA-575x-p9rr-ph24"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Mercury X18G router","requires_auth":"none","summary":"An attacker can cause a denial of service on MERCUSYS Mercury X18G routers by sending a crafted value to the listen_http_lan parameter, requiring manual recovery.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mercury_x18g_firmware","vendor":"mercusys"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"MERCUSYS Mercury X18G 1.0.5 devices allow Denial of service via a crafted value to the POST listen_http_lan parameter. Upon subsequent device restarts after this vulnerability is exploted the device will not be able to access the webserver unless the listen_http_lan parameter to uhttpd.json is manually fixed.","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":"Denial of service in n/a","id":"CVE-2021-25811","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Command injection in n/a","id":"CVE-2021-25812"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-25810"},"products":["n/a"],"published":"2021-04-29","related":[{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2021-25810","kev_date_added":null,"published":"2021-04-29"},{"cvss_score":5.3,"headline":"Path traversal in n/a","id":"CVE-2021-23241","kev_date_added":null,"published":"2021-01-07"},{"cvss_score":5.3,"headline":"Path traversal in n/a","id":"CVE-2021-23242","kev_date_added":null,"published":"2021-01-07"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"An attacker can cause a denial of service on MERCUSYS Mercury X18G routers by sending a crafted value to the listen_http_lan parameter, requiring manual recovery.","url":"https://insights.sbomify.com/CVE-2021-25811/"}