SEPTEMBER 18, 2026
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Case File

CVE-2026-80927

UNKNOWN · CVSS N/A EPSS 0.17%

Source: NVD + CISA KEV + EPSS · Published 2026-09-11 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's timekeeping functionality, specifically during the adjustment of time when the auxiliary clock is disabled. If exploited, it can lead to the use of uninitialized stack data, potentially leaking sensitive information to userspace. Linux system administrators and developers should prioritize addressing this issue to mitigate the risk of information exposure.

CVE
CVE-2026-80927
Severity
UNKNOWN
CVSS
N/A
EPSS
0.17%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: timekeeping: Check the return value of tk_get_aux_ts64 in __do_adjtimex() If the auxiliary clock is disabled during tk_get_aux_ts64() but is enabled before tks->clock_valid is checked, then uninitialized stackdata will be used in the calculations and indirectly leaked to userspace. The same race window also exists after this change and also for the core timekeeper. But in these cases the only effect would be incorrect adjustments and this is userspace's responsibility to avoid this.