01 Record

CVE-2021-47542

net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()

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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.6% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

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

Red Hat severity

Low. 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

2026-05-11 13:56Z3 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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

fce73ae3ba4a1f0cc8a43fbedd510ddd2ffd97c47b27f5ab491dc12711fe5021

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux7f9664525f9cb507de9198a395a111371413f230 to < 3a061d54e260b701b538873b43e399d9b8b83e03, 7f9664525f9cb507de9198a395a111371413f230 to < b4f217d6fcc00c3fdc0921a7691f30be7490b073, 7f9664525f9cb507de9198a395a111371413f230 to < 550658a2d61e4eaf522c8ebc7fad76dc376bfb45, 7f9664525f9cb507de9198a395a111371413f230 to < 57af54a56024435d83e44c78449513b414eb6edf, 7f9664525f9cb507de9198a395a111371413f230 to < bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f, 7f9664525f9cb507de9198a395a111371413f230 to < 15fa12c119f869173f9b710cbe6a4a14071d2105, 7f9664525f9cb507de9198a395a111371413f230 to < c5ef33c1489b2cd74368057fa00b5d2183bb5853, 7f9664525f9cb507de9198a395a111371413f230 to < e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572, 3.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3a061d54e260b701b538873b43e399d9b8b83e03
git.kernel.orghttps://git.kernel.org/stable/c/b4f217d6fcc00c3fdc0921a7691f30be7490b073
git.kernel.orghttps://git.kernel.org/stable/c/550658a2d61e4eaf522c8ebc7fad76dc376bfb45
git.kernel.orghttps://git.kernel.org/stable/c/57af54a56024435d83e44c78449513b414eb6edf
git.kernel.orghttps://git.kernel.org/stable/c/bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f
git.kernel.orghttps://git.kernel.org/stable/c/15fa12c119f869173f9b710cbe6a4a14071d2105
git.kernel.orghttps://git.kernel.org/stable/c/c5ef33c1489b2cd74368057fa00b5d2183bb5853
git.kernel.orghttps://git.kernel.org/stable/c/e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572

01 Record index

CVE-2021-47542

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47542

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References