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CVE-2025-37773· NVD / CVE Program· CNA Linux

virtiofs: add filesystem context source name check

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: 0.19% (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 599d1e2a6aecc44acf22fe7ea6f5e84a7e526abe, 5ee09cdaf3414f6c92960714af46d3d90eede2f3, 9d6dcf18a1b49990295ac8a05fd9bdfd27ccbf88; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1.

Low priority for now. Upgrade to Linux Linux 599d1e2a6aecc44acf22fe7ea6f5e84a7e526abe, 5ee09cdaf3414f6c92960714af46d3d90eede2f3, 9d6dcf18a1b49990295ac8a05fd9bdfd27ccbf88; azl3 kernel 6.6.85.1-4 on Azure Linux 3.0 6.6.92.2-1; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.92.2-1 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

In the Linux kernel, the following vulnerability has been resolved: virtiofs: add filesystem context source name check In certain scenarios, for example, during fuzz testing, the source name may be NULL, which could lead to a kernel panic. Therefore, an extra check for the source name should be added.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 9th 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.

Follow CVE-2025-37773

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
debiandebian linux

Affected versions

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

  • debian debian linux11.0
  • linux linux kernel5.5 and later · before 5.10.237
  • linux linux kernel5.11 and later · before 5.15.181
  • linux linux kernel5.16 and later · before 6.1.135
  • linux linux kernel5.4 and later · before 5.4.293
  • linux linux kernel6.7 and later · before 6.12.25
  • linux linux kernel6.13 and later · before 6.14.4
  • linux linux kernel6.2 and later · before 6.6.88
  • linux linux kernel6.15

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

    • 5.4affected
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before b84f13fdad10a543e2e65bab7e81b3f0bceabd67affected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before 9d6dcf18a1b49990295ac8a05fd9bdfd27ccbf88affected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before 5ee09cdaf3414f6c92960714af46d3d90eede2f3affected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before 599d1e2a6aecc44acf22fe7ea6f5e84a7e526abeaffected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before f6ec52710dc5e156b774cbef5d0f5c99b1c53a80affected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before c3e31d613951c299487844c4d1686a933e8ee291affected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before a648d80f8d9b208beee03a2d9aa690cfacf1d41eaffected · git
    • a62a8ef9d97da23762a588592c8b8eb50a8deb6a and later · before a94fd938df2b1628da66b498aa0eeb89593bc7a2affected · git
    • before 5.4not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.135-16.1.135-1
Debian:13linuxbefore 6.12.25-16.12.25-1

Same product

linux: all records

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
    77This week
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    77This week

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 Linux599d1e2a6aecc44acf22fe7ea6f5e84a7e526abeVendor (CNA)
Linux Linux5ee09cdaf3414f6c92960714af46d3d90eede2f3Vendor (CNA)
Linux Linux9d6dcf18a1b49990295ac8a05fd9bdfd27ccbf88Vendor (CNA)
Linux Linuxa648d80f8d9b208beee03a2d9aa690cfacf1d41eVendor (CNA)
Linux Linuxa94fd938df2b1628da66b498aa0eeb89593bc7a2Vendor (CNA)
Linux Linuxb84f13fdad10a543e2e65bab7e81b3f0bceabd67Vendor (CNA)
Linux Linuxc3e31d613951c299487844c4d1686a933e8ee291Vendor (CNA)
Linux Linuxf6ec52710dc5e156b774cbef5d0f5c99b1c53a80Vendor (CNA)
azl3 kernel 6.6.85.1-4 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.92.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.135-1 · 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 (9 more)

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

All records