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NVD / CVE Program· CNA Linux

CVE-2026-68369: usb: gadget: printer: fix infinite loop in printer_read()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 3081b0e187065c3b9577e393ad664b12854aeaf3, 3f81197364b57e5318620c75f3bd63f405f60552, 4cde0b38cc0cb8b7dc17295801015148de37d1d2; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3081b0e187065c3b9577e393ad664b12854aeaf3, 3f81197364b57e5318620c75f3bd63f405f60552, 4cde0b38cc0cb8b7dc17295801015148de37d1d2; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: usb: gadget: printer: fix infinite loop in printer_read() printer_read() uses the same variable for the requested copy size and the number of bytes actually copied to user space. copy_to_user() returns the number of bytes not copied, so when it fails to copy anything, the computed copied length becomes zero. In that case len, buf, current_rx_bytes and current_rx_buf are left unchanged. If RX data is available and the user buffer remains unwritable, the read loop can repeat indefinitely. Track the copied length separately and return -EFAULT, or the number of bytes already copied, if an iteration makes no progress.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 19, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
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.

—

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

    • 4.1affected
    • b185f01a9ab7af586133be2555298e960237359b and later · before 3f81197364b57e5318620c75f3bd63f405f60552affected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before e225e2998e5a9b83c838dbbe4511fb0d63f88dafaffected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before 3081b0e187065c3b9577e393ad664b12854aeaf3affected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before 994afccfdcceb73be33f69a8a8ea71e260c9eca5affected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before e03597ad9494b500344076589aeaa6c6d2d381d3affected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before 4cde0b38cc0cb8b7dc17295801015148de37d1d2affected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2eaffected · git
    • b185f01a9ab7af586133be2555298e960237359b and later · before c2e819be6a5c7f34344926b4bd7e3dfca58cf48aaffected · git
    • before 4.1not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-68364Aug 10, 2026 · drm/amd/display: Fix ISM dc_lock deadlock during suspend
    0Monitor
  • ← EarlierCVE-2026-68366Aug 10, 2026 · usb: gadget: uvc: clamp SEND_RESPONSE length to the response buffer
    0Monitor
  • Later →CVE-2026-68370Aug 10, 2026 · usb: gadget: dummy_hcd: prevent fifo_req reuse during giveback
    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 Linux3081b0e187065c3b9577e393ad664b12854aeaf3Vendor (CNA)
Linux Linux3f81197364b57e5318620c75f3bd63f405f60552Vendor (CNA)
Linux Linux4cde0b38cc0cb8b7dc17295801015148de37d1d2Vendor (CNA)
Linux Linux994afccfdcceb73be33f69a8a8ea71e260c9eca5Vendor (CNA)
Linux Linuxc2e819be6a5c7f34344926b4bd7e3dfca58cf48aVendor (CNA)
Linux Linuxe03597ad9494b500344076589aeaa6c6d2d381d3Vendor (CNA)
Linux Linuxe225e2998e5a9b83c838dbbe4511fb0d63f88dafVendor (CNA)
Linux Linuxe41bbbbb1740ce4d7270ab1cdeca13892d6a8d2eVendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · Debian:12Package 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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