01 Record

CVE-2021-47548

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total 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

1.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 69.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2026-05-11 13:56Z3 MO AGO

Reserved

2024-05-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-129Improper Validation of Array IndexVariant

Data version

5.2

Document digest

6bff76fe321c440fd8d24194522bbd37148b36542f3099b8258deb66671eef87

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < 948968f8747650447c8f21c9fdba0e1973be040b, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < abbd5faa0748d0aa95d5191d56ff7a17a6275bd1, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < dd07f8971b81ad98cc754b179b331b57f35aa1ff, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < 99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < 22519eff7df2d88adcc2568d86046ce1e2b52803, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < fc7ffa7f10b9454a86369405d9814bf141b30627, 850bfa3b78ea8849fef78ed74f5f2ccf947db0ca to < a66998e0fbf213d47d02813b9679426129d0d114, 4.7—

linuxlinux_kernel1da177e4c3f4 to < 948968f87476, 1da177e4c3f4 to < abbd5faa0748, 1da177e4c3f4 to < dd07f8971b81, 1da177e4c3f4 to < 99bb25cb6753, 1da177e4c3f4 to < 22519eff7df2, 1da177e4c3f4 to < fc7ffa7f10b9, 1da177e4c3f4 to < a66998e0fbf2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
git.kernel.orghttps://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
git.kernel.orghttps://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
git.kernel.orghttps://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
git.kernel.orghttps://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
git.kernel.orghttps://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
git.kernel.orghttps://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114

01 Record index

CVE-2021-47548

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47548

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References