6.5

CVE-2026-77375: drakkan sftpgo Improper Validation of Array Index

CVSS: 6.5v3.1MediumDeferred
AliasesGHSA-q7pc-356p-hggcGO-2026-6792
Published 13-10-2026Last modified 13-10-2026
Open JSON

Vulnerability summary

CVE-2026-77375 is a medium (CVSS 6.5) Improper Validation of Array Index vulnerability in drakkan sftpgo. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.31%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 13-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202621-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Drakkan1 product
Github.com/drakkan1 product
  • sftpgoAll versions (No fix recorded)
Github.com/drakkan/sftpgo1 product
  • v2< 2.7.5

3 vendors · 3 products

References

5 links