CVE-2026-77173

MEDIUMCVSS 4.3/10EPSS 0.21%

Last modified

CVE-2026-77173 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.21%

10.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
NextcloudFiles Confidential>= 3.3.0, <= 5.0.0

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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.
How severe is CVE-2026-77173?
CVE-2026-77173 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-77173?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST