© 2026 vulntracker.io

CVE-2021-3609

HIGH

7

CVSS Score

Published: March 3, 2022 at 06:24 PM UTC

Updated: June 17, 2026 at 04:05 AM UTC

44 products affected across 3 vendorsLinux KernelEnterprise Linux Server AusEnterprise Linux Eus

Using kernel by N/A?

Get instant alerts when new vulnerabilities affect kernel - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7

Exploit prediction

EPSS 0.4%

Description

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.25 ≤ v < 4.4.2764.10 ≤ v < 4.14.2404.15 ≤ v < 4.19.1984.20 ≤ v < 5.4.1324.5 ≤ v < 4.9.2765.11 ≤ v < 5.12.175.13 ≤ v < 5.13.25.5.0 ≤ v < 5.10.50

Affected range stops below 4.14.240, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.198, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.4.276, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.9.276, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.50, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.13.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.132, so it looks safe — our inference, not a vendor statement

H300E Firmware · NetAppdrupal

95%

All versions

netapp-h300e (same device)

H300S Firmware · NetAppdrupal

95%

All versions

netapp-h300s (same device)

H410C Firmware · NetAppdrupal

95%

All versions

netapp-h410c (same device)

H410S Firmware · NetAppdrupal

95%

All versions

netapp-h410s (same device)

H500E Firmware · NetAppdrupal

95%

All versions

netapp-h500e (same device)

H500S Firmware · NetAppdrupal

95%

All versions

netapp-h500s (same device)

H610C Firmware · NetApp

95%

All versions

netapp-h610c (same device)

H610S Firmware · NetApp

95%

All versions

netapp-h610s (same device)

H615C Firmware · NetApp

95%

All versions

netapp-h615c (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463

References (5)

x_refsource_MISCIssue TrackingThird Party Advisory

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=1971651

x_refsource_MISCExploitTechnical DescriptionThird Party Advisory

Source: [email protected]

https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20220419-0004/

x_refsource_MISCMailing ListThird Party Advisory

Source: [email protected]

https://www.openwall.com/lists/oss-security/2021/06/19/1

CVSS

7HIGH[email protected]

Attack Vector: LOCAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-362

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card