CVE-2026-43493CWE-390

CVE-2026-43493

Critical · published May 19, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
49.0
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

crypto: pcrypt - Fix handling of MAY_BACKLOG requests

MAY_BACKLOG requests can return EBUSY. Handle them by checking

for that value and filtering out EINPROGRESS notifications.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00620 · 49.0th percentile
Weakness
CWE-390 · Detection of Error Condition Without Action
Published
2026-05-19T16:16Z
Affected products (7)
ProductVersionsFixed in
linux/linux_kernel≥ 2.6.34, < 5.10.2585.10.258
linux/linux_kernel≥ 5.11, < 5.15.2095.15.209
linux/linux_kernel≥ 5.16, < 6.1.1756.1.175
linux/linux_kernel≥ 6.2, < 6.6.1406.6.140
linux/linux_kernel≥ 6.7, < 6.12.866.12.86
linux/linux_kernel≥ 6.13, < 6.18.276.18.27
linux/linux_kernel≥ 6.19, < 7.0.47.0.4
References (9)
EPSS history
Timeline
  • 19 MAY 10:44Z
    crypto: pcrypt - Fix handling of MAY_BACKLOG requests
    cvelistv5