{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2021-27289 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27289 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27289 is a critical vulnerability in n/a, published on 15 Apr 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-2021-27289 and fix it if it is affected.\n\nWhat it is: CVE-2021-27289 is a critical vulnerability in n/a, published on 15 Apr 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-2021-27289 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-2021-27289/ (Markdown: https://insights.sbomify.com/CVE-2021-27289/index.md)","id":"CVE-2021-27289","markdown":"https://insights.sbomify.com/CVE-2021-27289/index.md","name":"CVE-2021-27289","record":{"aliases":["GHSA-25fv-45mr-wm5r"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["security_bypass","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Zigbee smart home kit","requires_auth":"none","summary":"Attackers can inject spoofed commands via replay attacks in Zigbee devices, triggering false alerts and bypassing authentication mechanisms.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"}],"description":"A replay attack vulnerability was discovered in a Zigbee smart home kit manufactured by Ksix (Zigbee Gateway Module = v1.0.3, Door Sensor = v1.0.7, Motion Sensor = v1.0.12), where the Zigbee anti-replay mechanism - based on the frame counter field - is improperly implemented. As a result, an attacker within wireless range can resend captured packets with a higher sequence number, which the devices incorrectly accept as legitimate messages. This allows spoofed commands to be injected without authentication, triggering false alerts and misleading the user through notifications in the mobile application used to monitor the network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2025-04-08","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-04-08T10:29:10Z","kind":"github_poc","ref":"https://github.com/TheMalwareGuardian/CVE-2021-27289","stars":1,"title":"CVE-2021-27289: Playback Protection Bypass on Ksix Zigbee devices"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Other in n/a","id":"CVE-2021-27289","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2021"},"n_packages":0,"n_references":6,"next":{"headline":"Regular Expression Denial of Service (ReDoS)","id":"CVE-2021-27290"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-27288"},"products":["n/a"],"published":"2025-04-15","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-16","vendors":["n/a"]},"summary":"Attackers can inject spoofed commands via replay attacks in Zigbee devices, triggering false alerts and bypassing authentication mechanisms.","url":"https://insights.sbomify.com/CVE-2021-27289/"}