CVE-2026-107573
Incorrect Default Permissions in hMailServer
02 Description
Incorrect Default Permissions in hMailServer
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 0.9% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-08.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-08 11:46Z20 DAYS AGO
- Last updated
- 2026-10-08 14:16Z20 DAYS AGO
- Reserved
- 2026-10-08
- Assigning CNA
- GitLab
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-276Incorrect Default PermissionsBase
- Data version
- 5.2
- Document digest
- 2b0fc7ac5c304babf7fdb489f4c366190a9edccadb18353ab64a3d9b53b7ca40
05 Affected products
06 References
07 Remediation
Upgrade to hMailServer 6.3.6, whose installer makes the data, log, temp, database and event folders and hMailServer.INI private to SYSTEM, the Administrators and the service at every installation and upgrade; then change the database password and the administrator password if accounts that are not administrators could sign in to the server. Until then, from an elevated prompt, remove the inherited entries for Users and the application package groups from those folders and the file with icacls (/inheritance:d, then /remove:g).