{"id":"CVE-2021-34577","aliases":["EUVD-2021-21227","GHSA-q3wx-xp39-27ph"],"status":"published","title":"Hardcoded credentials in Kaden PICOFLUX AiR","description":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00297,"percentile":0.22507,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2022-11-09T16:11:03Z","modified":"2026-06-17T03:56:09Z","products":[{"vendor":"kaden","product":"picoflux air"},{"vendor":"kadenvodomery","product":"picoflux_air_firmware"}],"references":[{"url":"https://www.fit.vutbr.cz/~polcak/CVE-2021-34577","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34577"},{"url":"https://github.com/advisories/GHSA-q3wx-xp39-27ph"}],"sources":{"cve":[{"id":"CVE-2021-34577","title":"Hardcoded credentials in Kaden PICOFLUX AiR","description":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.","status":"published","published":"2022-11-09T16:11:03.018Z","modified":"2025-05-01T19:16:45.077Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21227","description":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.","status":"published","published":"2022-11-09T16:11:03Z","modified":"2025-05-01T19:16:45Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:51:56.360543Z"}],"ghsa":[{"id":"GHSA-q3wx-xp39-27ph","title":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus...","description":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.","status":"published","published":"2022-11-09T19:02:21Z","modified":"2023-01-30T05:06:27Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:47:30.041148Z"}],"nvd":[{"id":"CVE-2021-34577","description":"In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.","status":"published","published":"2022-11-09T17:15:10.08Z","modified":"2026-06-17T03:56:09.717Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}