CVE-2026-64955
mediumpriority · track · 0EPSS 0.004 · 30 %ileDEEUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2728Rapid7 Velociraptor: Mehrere SchwachstellenDeutsch2026-08-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Rapid7 Velociraptor ausnutzen, um erweiterte Berechtigungen, einschließlich Administratorrechte, zu erlangen, Sicherheitsmaßnahmen zu umgehen, Spoofing- und Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, sensible Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- http://docs.velociraptor.app/announcements/advisories/cve-2026-64955/cnnvd
- https://docs.velociraptor.app/announcements/advisories/cve-2026-64955/Patchcnnvd
- http://docs.velociraptor.app/announcements/advisories/cve-2026-64955/enisa_euvd
- http://docs.velociraptor.app/announcements/advisories/cve-2026-64955/nvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan