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NVD / CVE Program· CNA Linux

CVE-2023-54309: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation

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 04e8697d26613ccea760cf57eb20a5a27f788c0f, 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51, 509d21f1c4bb9d35d397fca3226165b156a7639f.

Low priority for now. Upgrade to Linux Linux 04e8697d26613ccea760cf57eb20a5a27f788c0f, 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51, 509d21f1c4bb9d35d397fca3226165b156a7639f 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: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation /dev/vtpmx is made visible before 'workqueue' is initialized, which can lead to a memory corruption in the worst case scenario. Address this by initializing 'workqueue' as the very first step of the driver initialization.

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 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.

Follow CVE-2023-54309

When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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

    • 4.8affected
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 509d21f1c4bb9d35d397fca3226165b156a7639faffected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 04e8697d26613ccea760cf57eb20a5a27f788c0faffected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 86b9820395f226b8f33cbae9599deebf8af1ce72affected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815baffected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before e08295290c53a3cf174c236721747a01b9550ae2affected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604affected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51affected · git
    • 6f99612e250041a2402d3b1694bccb149cd424a4 and later · before f4032d615f90970d6c3ac1d9c0bce3351eb4445caffected · git
    • before 4.8not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.11-16.4.11-1

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-2023-54305Dec 30, 2025 · ext4: refuse to create ea block when umounted
    0Monitor
  • ← EarlierCVE-2023-54307Dec 30, 2025 · ptp_qoriq: fix memory leak in probe()
    0Monitor
  • Later →CVE-2023-54310Dec 30, 2025 · scsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition
    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 Linux04e8697d26613ccea760cf57eb20a5a27f788c0fVendor (CNA)
Linux Linux092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51Vendor (CNA)
Linux Linux509d21f1c4bb9d35d397fca3226165b156a7639fVendor (CNA)
Linux Linux86b9820395f226b8f33cbae9599deebf8af1ce72Vendor (CNA)
Linux Linux99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604Vendor (CNA)
Linux Linux9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815bVendor (CNA)
Linux Linuxe08295290c53a3cf174c236721747a01b9550ae2Vendor (CNA)
Linux Linuxf4032d615f90970d6c3ac1d9c0bce3351eb4445cVendor (CNA)
debian:linux6.1.52-1 · 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.

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

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