01 Record

CVE-2021-47596

net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.9% 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

Modified. 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

2024-06-19 14:53Z2 YR AGO

Last updated

2026-05-11 13:57Z5 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-416Use After FreeVariant

Data version

5.2

Document digest

4f590b35bb04d0ae0b63ed3f4f6822f595a07ccac00bddd326c21becbba003c8

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxd8355240cf8fb8b9e002b5c8458578435cea85c2 to < 12512bc8f25b8ba9795dfbae0e9ca57ff13fd542, d8355240cf8fb8b9e002b5c8458578435cea85c2 to < 4f4a353f6fe033807cd026a5de81c67469ff19b0, d8355240cf8fb8b9e002b5c8458578435cea85c2 to < 27cbf64a766e86f068ce6214f04c00ceb4db1af4, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/12512bc8f25b8ba9795dfbae0e9ca57ff13fd542
git.kernel.orghttps://git.kernel.org/stable/c/4f4a353f6fe033807cd026a5de81c67469ff19b0
git.kernel.orghttps://git.kernel.org/stable/c/27cbf64a766e86f068ce6214f04c00ceb4db1af4

07 Fixed in

AlmaLinux 9

bpftool
Fixed in 7.3.0-427.26.1.el9_4
kernel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-abi-stablelists
Fixed in 5.14.0-427.26.1.el9_4
kernel-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-cross-headers
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-uki-virt
Fixed in 5.14.0-427.26.1.el9_4
kernel-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-doc
Fixed in 5.14.0-427.26.1.el9_4
kernel-headers
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-modules
Fixed in 5.14.0-427.26.1.el9_4

22 further packages in AlmaLinux 9 not shown (first 40 listed).

CloudLinux 9

bpftool
Fixed in 7.3.0-427.26.1.el9_4
kernel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-debug-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-64k-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-abi-stablelists
Fixed in 5.14.0-427.26.1.el9_4
kernel-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-cross-headers
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-debug-uki-virt
Fixed in 5.14.0-427.26.1.el9_4
kernel-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-devel-matched
Fixed in 5.14.0-427.26.1.el9_4
kernel-doc
Fixed in 5.14.0-427.26.1.el9_4
kernel-headers
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-modules-extra
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-core
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-devel
Fixed in 5.14.0-427.26.1.el9_4
kernel-rt-debug-modules
Fixed in 5.14.0-427.26.1.el9_4

22 further packages in CloudLinux 9 not shown (first 40 listed).

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Debian 12

linux
Fixed in 5.15.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.15.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.15.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

linux-hwe-edge
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

linux-aws-5.0
No fix yet
linux-aws-5.3
No fix yet
linux-azure
No fix yet
linux-azure-5.3
No fix yet
linux-azure-edge
No fix yet
linux-gcp
No fix yet
linux-gcp-5.3
No fix yet
linux-gke-4.15
No fix yet
linux-gke-5.4
No fix yet
linux-gkeop-5.4
No fix yet
linux-hwe
No fix yet
linux-hwe-edge
No fix yet
linux-oem
No fix yet
linux-oracle-5.0
No fix yet
linux-oracle-5.3
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

linux-aws-5.11
No fix yet
linux-aws-5.13
No fix yet
linux-aws-5.8
No fix yet
linux-azure-5.11
No fix yet
linux-azure-5.13
No fix yet
linux-azure-5.8
No fix yet
linux-azure-fde
No fix yet
linux-gcp-5.11
No fix yet
linux-gcp-5.13
No fix yet
linux-gcp-5.8
No fix yet
linux-gke
No fix yet
linux-gke-5.15
No fix yet
linux-hwe-5.11
No fix yet
linux-hwe-5.13
No fix yet
linux-hwe-5.8
No fix yet
linux-intel-5.13
No fix yet
linux-oem-5.10
No fix yet
linux-oem-5.13
No fix yet
linux-oem-5.14
No fix yet
linux-oem-5.6
No fix yet
linux-oracle-5.11
No fix yet
linux-oracle-5.13
No fix yet
linux-oracle-5.8
No fix yet
linux-raspi2
No fix yet
linux-riscv
No fix yet
linux-riscv-5.11
No fix yet
linux-riscv-5.8
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

linux-allwinner-5.19
No fix yet
linux-aws-5.19
No fix yet
linux-aws-6.2
No fix yet
linux-azure-5.19
No fix yet
linux-azure-6.2
No fix yet
linux-azure-fde-5.19
No fix yet
linux-azure-fde-6.2
No fix yet
linux-gcp-5.19
No fix yet
linux-gcp-6.2
No fix yet
linux-hwe-5.19
No fix yet
linux-hwe-6.2
No fix yet
linux-lowlatency-hwe-5.19
No fix yet
linux-lowlatency-hwe-6.2
No fix yet
linux-nvidia-6.2
No fix yet
linux-oem-5.17
No fix yet
linux-oem-6.0
No fix yet
linux-oem-6.1
No fix yet
linux-riscv
No fix yet
linux-riscv-5.19
No fix yet
linux-starfive-5.19
No fix yet
linux-starfive-6.2
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.