01 Record

CVE-2021-47553

sched/scs: Reset task stack state in bringup_cpu()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

sched/scs: Reset task stack state in bringup_cpu()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.7% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-05-24 15:09Z2 YR AGO

Last updated

2026-05-23 15:20Z3 MO AGO

Reserved

2024-05-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-908Use of Uninitialized ResourceBase
CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

bcc1f52e1002a1ee3accf30df4ae7c63823e53879cc2597e101e9b48c0e4db23

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3c51d82d0b7862d7d246016c74b4390fb1fa1f11 to < e6ee7abd6bfe559ad9989004b34c320fd638c526, f1a0a376ca0c4ef1fc3d24e3e502acbb5b795674 to < 229c555260cb9c1ccdab861e16f0410f1718f302, f1a0a376ca0c4ef1fc3d24e3e502acbb5b795674 to < dce1ca0525bfdc8a69a9343bc714fbc19a2f04b3, 1cb358b3ac1bb43aa8c4283830a84216dda65d39, 24c79a7e54ccfa29fb8cbf7ed8d1e48ff1ec6e3d, 5.10.50 to < 5.10.83, 5.12.17 to < 5.13, 5.13.2 to < 5.14, 5.14—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e6ee7abd6bfe559ad9989004b34c320fd638c526
git.kernel.orghttps://git.kernel.org/stable/c/229c555260cb9c1ccdab861e16f0410f1718f302
git.kernel.orghttps://git.kernel.org/stable/c/dce1ca0525bfdc8a69a9343bc714fbc19a2f04b3

01 Record index

CVE-2021-47553

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47553

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References