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NVD / CVE Program· CNA Linux

CVE-2022-49151: can: mcba_usb: properly check endpoint type

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.26% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 136bed0bfd3bc9c95c88aafff2d22ecb3a919f23, 5598442edc29e8f6f2380e4b471dc1a3fcd80508, 88272b4a37913bdf6f339162a7920bd8e9b49de2.

Low priority for now. Upgrade to Linux Linux 136bed0bfd3bc9c95c88aafff2d22ecb3a919f23, 5598442edc29e8f6f2380e4b471dc1a3fcd80508, 88272b4a37913bdf6f339162a7920bd8e9b49de2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: can: mcba_usb: properly check endpoint type Syzbot reported warning in usb_submit_urb() which is caused by wrong endpoint type. We should check that in endpoint is actually present to prevent this warning. Found pipes are now saved to struct mcba_priv and code uses them directly instead of making pipes in place. Fail log: | usb 5-1: BOGUS urb xfer, pipe 3 != type 1 | WARNING: CPU: 1 PID: 49 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 | Modules linked in: | CPU: 1 PID: 49 Comm: kworker/1:2 Not tainted 5.17.0-rc6-syzkaller-00184-g38f80f42147f #0 | Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 | Workqueue: usb_hub_wq hub_event | RIP: 0010:usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502 | ... | Call Trace: | <TASK> | mcba_usb_start drivers/net/can/usb/mcba_usb.c:662 [inline] | mcba_usb_probe+0x8a3/0xc50 drivers/net/can/usb/mcba_usb.c:858 | usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 | call_driver_probe drivers/base/dd.c:517 [inline]

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 18th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.12 and later · before 4.14.276
  • linux linux kernel4.15 and later · before 4.19.238
  • linux linux kernel4.20 and later · before 5.4.189
  • linux linux kernel5.5 and later · before 5.10.110
  • linux linux kernel5.11 and later · before 5.15.33
  • linux linux kernel5.16 and later · before 5.16.19
  • linux linux kernel5.17 and later · before 5.17.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.12affected
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before 5598442edc29e8f6f2380e4b471dc1a3fcd80508affected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before b48d1bb3f1ca337ad653022aefb5a40a47dfe5cdaffected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before cbd110b8dd7ad763bf413f71c0484116ae9302d4affected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before ef0acc514123140157b19a9ff2e2de5d91d612bcaffected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before fa9c1f14002dc0d5293e16a2007bd89b6e79207baffected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before 88272b4a37913bdf6f339162a7920bd8e9b49de2affected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before f2ec3cd0f34f8c3f94bc21fbba14868301c9c49daffected · git
    • 51f3baad7de943780ce0c17bd7975df567dd6e14 and later · before 136bed0bfd3bc9c95c88aafff2d22ecb3a919f23affected · git
    • before 4.12not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.17.3-15.17.3-1
SUSE:Linux Enterprise Live Patching 12 SP5kernel-defaultbefore 4.12.14-122.250.14.12.14-122.250.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_66before 1-8.3.11-8.3.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-sourcebefore 4.12.14-122.250.14.12.14-122.250.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-symsbefore 4.12.14-122.250.14.12.14-122.250.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49148Feb 26, 2025 · watch_queue: Free the page array when watch_queue is dismantled
    22Monitor
  • ← EarlierCVE-2022-49150Feb 26, 2025 · rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram
    22Monitor
  • Later →CVE-2022-49152Feb 26, 2025 · XArray: Fix xas_create_range() when multi-order entry present
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux136bed0bfd3bc9c95c88aafff2d22ecb3a919f23Vendor (CNA)
Linux Linux5598442edc29e8f6f2380e4b471dc1a3fcd80508Vendor (CNA)
Linux Linux88272b4a37913bdf6f339162a7920bd8e9b49de2Vendor (CNA)
Linux Linuxb48d1bb3f1ca337ad653022aefb5a40a47dfe5cdVendor (CNA)
Linux Linuxcbd110b8dd7ad763bf413f71c0484116ae9302d4Vendor (CNA)
Linux Linuxef0acc514123140157b19a9ff2e2de5d91d612bcVendor (CNA)
Linux Linuxf2ec3cd0f34f8c3f94bc21fbba14868301c9c49dVendor (CNA)
Linux Linuxfa9c1f14002dc0d5293e16a2007bd89b6e79207bVendor (CNA)
debian:linux5.17.3-1 · Debian:12Package registry (OSV)
suse:kernel-default4.12.14-122.250.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-source4.12.14-122.250.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-syms4.12.14-122.250.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_661-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records