01 Record

CVE-2021-47495

usbnet: sanity check for maxpacket

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

usbnet: sanity check for maxpacket

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 11.8% 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

Analyzed. 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

2024-05-22 08:19Z2 YR AGO

Last updated

2026-05-11 13:55Z3 MO AGO

Reserved

2024-05-22

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-369Divide By ZeroBase

Data version

5.2

Document digest

c33b037d1a585cc8909797e2f61575625784ec690345ffab92b42a77eb1fa482

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b9eba0a4a527e04d712f0e0401e5391ef124b33e, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 524f333e98138d909a0a0c574a9ff6737dce2767, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 74b3b27cf9fecce00cd8918b7882fd81191d0aa4, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 002d82227c0abe29118cf80f7e2f396b22d448ed, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 492140e45d2bf27c1014243f8616a9b612144e20, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 693ecbe8f799405f8775719deedb1f76265d375a, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7e8b6a4f18edee070213cb6a77118e8a412253c5, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 397430b50a363d8b7bdda00522123f82df6adc5e, 2.6.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b9eba0a4a527e04d712f0e0401e5391ef124b33e
git.kernel.orghttps://git.kernel.org/stable/c/524f333e98138d909a0a0c574a9ff6737dce2767
git.kernel.orghttps://git.kernel.org/stable/c/74b3b27cf9fecce00cd8918b7882fd81191d0aa4
git.kernel.orghttps://git.kernel.org/stable/c/002d82227c0abe29118cf80f7e2f396b22d448ed
git.kernel.orghttps://git.kernel.org/stable/c/492140e45d2bf27c1014243f8616a9b612144e20
git.kernel.orghttps://git.kernel.org/stable/c/693ecbe8f799405f8775719deedb1f76265d375a
git.kernel.orghttps://git.kernel.org/stable/c/7e8b6a4f18edee070213cb6a77118e8a412253c5
git.kernel.orghttps://git.kernel.org/stable/c/397430b50a363d8b7bdda00522123f82df6adc5e

01 Record index

CVE-2021-47495

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47495

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References