CVE-2026-54886: SSH SFTP server denial of service via extended channel data infinite loop

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-07

Last Updated

2026-08-13

EPSS Score

0.33% (percentile: 24.4%)

Affected Products (2)

Other

• 21564-17084
• 21649-17084

Revision History

• 2026-07-07: Information published.
• 2026-07-11: Information published.
• 2026-08-13: Information published.