by Kastro
Paper/Archive/CVE-2026-54203

CVE-2026-54203

Tobit Laboratories AG TeamDavid — TeamDavid: Memory Leak leaking sensitive information

EPSS 0.6%CVSS 9.2
critical.is priorityof 100
37
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 46.6.466 × 209.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Memory Leak to an Unauthorized Actor vulnerability in Tobit Laboratories AG TeamDavid's Webbox allows reading of sensitive information. When accessing the URL “/.well-known/mta-sts.”, the application responds with memory. By repeatedly requesting this endpoint, an attacker can access sensitive information, including user passwords. Exploitation does not require authentication. This issue affects TeamDavid before Rollout 528. Starting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.

Affected

ProductAffectedFixed inSource
TeamDavid< Rollout 528Rollout 528CNA

Scores by source

NCSC.ch (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refchayns.net/77892-10814/tapp/763210?postId=11454writeuplabs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative