CVE-2026-63825: gcov: use atomic counter updates to fix concurrent access crashes

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-20

Last Updated

2026-08-13

EPSS Score

0.78% (percentile: 53.3%)

Affected Products (2)

Other

• 21580-17084
• 21684-17084

Revision History

• 2026-07-20: Information published.
• 2026-07-20: Information published.
• 2026-08-13: Information published.