VulnerabilityAnalyzed
CVE-2026-43493
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY.
CRITICAL 9.8EPSS 0.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.55% probability · 45th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084ePatch
- https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380aPatch
- https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236Patch
- https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67Patch
- https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110Patch
- https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2Patch
- https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9ePatch
- https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.