What is CVE-2026-77375?

CVE-2026-77375 is a medium-severity vulnerability in Drakkan Sftpgo, classified under Improper Validation of Array Index. CVSS score: 6.5/10. Published 2026-10-13.

How severe is CVE-2026-77375?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Drakkan Sftpgo

CVE-2026-77375

SFTPGo is an open source, event-driven file transfer solution. Prior to 2.7.5, an authenticated SSH user can send a malformed protocol message while opening a channel, causing an unhandled error that terminates the server process and affects all connected users until restart. No confidentiality or integrity impact has been identified. This issue is fixed in 2.7.5.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Drakkan Sftpgo — versions < 2.7.5

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index

References

Frequently asked questions

What is CVE-2026-77375?: CVE-2026-77375 is a medium-severity vulnerability in Drakkan Sftpgo, classified under Improper Validation of Array Index. CVSS score: 6.5/10. Published 2026-10-13.
How severe is CVE-2026-77375?: Medium severity. CVSS v3 base score is 6.5 out of 10.