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NVD / CVE Program· CNA Linux

CVE-2026-23155: can: gs_usb: gs_usb_receive_bulk_callback(): fix error message

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: 0.13% (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 494fc029f662c331e06b7c2031deff3c64200eed, 6.12.69, 6.18.9.

Low priority for now. Upgrade to Linux Linux 494fc029f662c331e06b7c2031deff3c64200eed, 6.12.69, 6.18.9 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: gs_usb: gs_usb_receive_bulk_callback(): fix error message Sinc commit 79a6d1bfe114 ("can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error") a failing resubmit URB will print an info message. In the case of a short read where netdev has not yet been assigned, initialize as NULL to avoid dereferencing an undefined value. Also report the error value of the failed resubmit.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 14, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 2th percentile

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 · 0.1%

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.

Follow CVE-2026-23155

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 kernel6.12.68
  • linux linux kernel6.18.8
  • linux linux kernel6.19
  • linux linux kernel6.6.122

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

    • da01de754e455e2598a7f1ce4ff2078c4f0ecde1 and later · before 7a431df418ee6b79841e0b4c7c265a791e3d0a75affected · git
    • aa8a8866c533a150be4763bcb27993603bd5426c and later · before aed58a28ea71a0d7d0947190fab1e3f4daa1d4a5affected · git
    • ce4352057fc5a986c76ece90801b9755e7c6e56c and later · before 923379f1d7e3af8ccbf11edbbcf41f1bb3e9cfe6affected · git
    • c610b550ccc0438d456dfe1df9f4f36254ccaae3 and later · before 8986cdf52f86208df9c7887fee23365b5d37da26affected · git
    • c3edc14da81a8d8398682f6e4ab819f09f37c0b7 and later · before 713ba826ae114ab339c9a1b31e209bebdadb0ac9affected · git
    • 79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7 and later · before 494fc029f662c331e06b7c2031deff3c64200eedaffected · git
    • 6.6.122 and later · before 6.6.123affected · semver
    • 6.12.68 and later · before 6.12.69affected · semver
    • 6.18.8 and later · before 6.18.9affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:14linuxbefore 6.18.9-16.18.9-1

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-2026-23152Feb 14, 2026 · wifi: mac80211: correctly decode TTLM with default link map
    22Monitor
  • ← EarlierCVE-2026-23153Feb 14, 2026 · firewire: core: fix race condition against transaction list
    18Monitor
  • Later →CVE-2026-23156Feb 14, 2026 · efivarfs: fix error propagation in efivar_entry_get()
    31Monitor

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 Linux494fc029f662c331e06b7c2031deff3c64200eedVendor (CNA)
Linux Linux6.12.69Vendor (CNA)
Linux Linux6.18.9Vendor (CNA)
Linux Linux6.6.123Vendor (CNA)
Linux Linux713ba826ae114ab339c9a1b31e209bebdadb0ac9Vendor (CNA)
Linux Linux7a431df418ee6b79841e0b4c7c265a791e3d0a75Vendor (CNA)
Linux Linux8986cdf52f86208df9c7887fee23365b5d37da26Vendor (CNA)
Linux Linux923379f1d7e3af8ccbf11edbbcf41f1bb3e9cfe6Vendor (CNA)
Linux Linuxaed58a28ea71a0d7d0947190fab1e3f4daa1d4a5Vendor (CNA)
debian:linux6.18.9-1 · Debian:14Package 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.

No history yet (it accumulates with the daily EPSS job).

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)

CWE-476 · NULL Pointer Dereference

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 (5 more)

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

All records