CVE-2026-64955

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 52/100
Published: 2026-08-12 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: Required
S: Changed
C: High
I: None
A: None

Description

When Microsoft Excel imports a CSV file, it executes cells beginning with certain characters as formulas, giving such CSV files arbitrary execution.  Velociraptor fails to sanitize such cells when exporting to CSV from various places such as the GUI, offline collector or data exports. It is not clear if the vulnerability is actually in Microsoft Excel treating a CSV data file as executable content, or if Velociraptor should be sanitizing the data to prevent Excel from executing it. However, since this is such a common use case for Velociraptor we decided to highlight it in an advisory.

Weakness Classification (1)

Bug Bounty Relevance

52 / 100
✓ Network accessible
✓ No authentication

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.36%
Raw Score 0.003640
Percentile 30.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00364
2026-10-28
0.00364

Intelligence Sources

nvd ref →