{"cve":"CVE-2026-54211","nvd":{"published":"2026-08-07T10:16:58.170","modified":"2026-10-24T16:10:00.153","status":"Deferred","description":"Tobit Laboratories AG TeamDavid's Webbox application’s endpoint “//serverClient_close.html” is vulnerable to a\n buffer overflow vulnerability in multiple form data parameters. By \nsubmitting excessively long values in these parameters, an authenticated\n attacker can trigger a server crash, resulting in denial of service. \nDepending on the stack state or if a stack canary can be disclosed \nthrough another vulnerability, this buffer overflow could potentially be\n exploited for remote code execution, leading to full compromise of the \nserver. This issue affects TeamDavid before Rollout 528.\n\nStarting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.5},"cvss_v3":null,"cwes":["CWE-787"],"references":["https://chayns.net/77892-10814/tapp/763210?postId=11454","https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-54211","score":0.0064,"percentile":0.50361,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}