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NVD / CVE Program· CNA Linux

CVE-2023-53007: tracing: Make sure trace_printk() can output as soon as it can be used

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: 0.20% (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 198c83963f6335ca6d690cff067679560f2a3a22, 3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253, 76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce.

Low priority for now. Upgrade to Linux Linux 198c83963f6335ca6d690cff067679560f2a3a22, 3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253, 76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce 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: tracing: Make sure trace_printk() can output as soon as it can be used Currently trace_printk() can be used as soon as early_trace_init() is called from start_kernel(). But if a crash happens, and "ftrace_dump_on_oops" is set on the kernel command line, all you get will be: [ 0.456075] <idle>-0 0dN.2. 347519us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 353141us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 358684us : Unknown type 6 This is because the trace_printk() event (type 6) hasn't been registered yet. That gets done via an early_initcall(), which may be early, but not early enough. Instead of registering the trace_printk() event (and other ftrace events, which are not trace events) via an early_initcall(), have them registered at the same time that trace_printk() can be used. This way, if there is a crash before early_initcall(), then the trace_printk()s will actually be useful.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Mar 27, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th 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

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  • when exploit code appears or is weaponized
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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 4.14.305
  • linux linux kernel4.15 and later · before 4.19.272
  • linux linux kernel4.20 and later · before 5.4.231
  • linux linux kernel5.5 and later · before 5.10.166
  • linux linux kernel5.11 and later · before 5.15.91
  • linux linux kernel5.16 and later · before 6.1.9
  • linux linux kernel6.2

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
    • 5.4.231 and later · up to and including 5.4.*not affected · semver
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before f97eb0ab066133483a65c93eb894748de2f6b598affected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before b94d7c7654356860dd7719120c7d15ba38b6162aaffected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before 76b2390fdc80c0a8300e5da5b6b62d201b6fe9ceaffected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before de3930a4883ddad2244efd6d349013294c62c75caffected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before b0af180514edea6c83dc9a299d9f383009c99f25affected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before 198c83963f6335ca6d690cff067679560f2a3a22affected · git
    • e725c731e3bb1e892e7b564c945b121cb41d1087 and later · before 3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253affected · 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 6.1.11-16.1.11-1

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-2023-53004Mar 27, 2025 · ovl: fix tmpfile leak
    22Monitor
  • ← EarlierCVE-2023-53005Mar 27, 2025 · trace_events_hist: add check for return value of 'create_hist_field'
    22Monitor
  • Later →CVE-2023-53008Mar 27, 2025 · cifs: fix potential memory leaks in session setup
    22Monitor

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 Linux198c83963f6335ca6d690cff067679560f2a3a22Vendor (CNA)
Linux Linux3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253Vendor (CNA)
Linux Linux76b2390fdc80c0a8300e5da5b6b62d201b6fe9ceVendor (CNA)
Linux Linuxb0af180514edea6c83dc9a299d9f383009c99f25Vendor (CNA)
Linux Linuxb94d7c7654356860dd7719120c7d15ba38b6162aVendor (CNA)
Linux Linuxde3930a4883ddad2244efd6d349013294c62c75cVendor (CNA)
Linux Linuxf97eb0ab066133483a65c93eb894748de2f6b598Vendor (CNA)
debian:linux6.1.11-1 · 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.

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 (6 more)

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

All records