CVE-2026-77173
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
- Record
CVE-2026-77173- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-284
- Updated
- 2026-11-04
EUVDEUVD-2026-111128
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
- Record
EUVD-2026-111128- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-04
NVD
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
- Record
CVE-2026-77173- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-284
- Updated
- 2026-11-04
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List, EUVD | |
| first indexed | CVE List, EUVD, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-77173 is a medium vulnerability (CVSS 4.3) in Nextcloud Files Confidential, published October 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.