CVE-2026-27947
Essential information
- Published
- 27/02/2026 20:21
- Modified
- 27/02/2026 20:21
- Author
- —
- Creator
- —
- CVSS
- 9.4 CRITICAL (v3) 9.4 CRITICAL (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- LOW
- User interaction
- NONE
- Confidentiality (V)
- HIGH
- Confidentiality (S)
- HIGH
- Integrity (V)
- HIGH
- Integrity (S)
- HIGH
- Availability (V)
- HIGH
- Availability (S)
- HIGH
- Exploit maturity
- NOT_DEFINED
Description
Group-Office is an enterprise customer relationship management and groupware tool. Versions prior to 26.0.9, 25.0.87, and 6.8.154 have an authenticated Remote Code Execution vulnerability in the TNEF attachment processing flow. The vulnerable path extracts attacker-controlled files from `winmail.dat` and then invokes `zip` with a shell wildcard (`*`). Because extracted filenames are attacker-controlled, they can be interpreted as `zip` options and lead to arbitrary command execution. Versions 26.0.9, 25.0.87, and 6.8.154 fix the issue.
NVD status
- Status
- Received — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| group-office / group-office | cpe:2.3:a:group-office:group-office:<26.0.9:*:*:*:*:*:*:* |
| group-office / group-office | cpe:2.3:a:group-office:group-office:<25.0.87:*:*:*:*:*:*:* |
| group-office / group-office | cpe:2.3:a:group-office:group-office:<6.8.154:*:*:*:*:*:*:* |