What is CVE-2026-27947?

CVE-2026-27947 is a high-severity vulnerability in Intermesh Group-office, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-02-27.

How severe is CVE-2026-27947?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Intermesh Group-office

CVE-2026-27947

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 vulnera…

EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Intermesh Group-office
Intermesh Groupoffice — versions >= 26.0.0, < 26.0.9, >= 25.0.0, < 25.0.87, < 6.8.154

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-27947?: CVE-2026-27947 is a high-severity vulnerability in Intermesh Group-office, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-02-27.
How severe is CVE-2026-27947?: High severity. CVSS v3 base score is 8.8 out of 10.