smb: client: prevent races in ->query_interfaces()
Noroxi assessment
Priority: Monitor (action score 35/100)
- 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: 0.27% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: Linux Linux 6287eefaf21ec805d42f941bd368018cf397a7f5, 76cc4faba0343c6db945b8dc75425b33d633e1b8, 93e8e3ee165ae4609a1222b516b573837103d2c3.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 6287eefaf21ec805d42f941bd368018cf397a7f5, 76cc4faba0343c6db945b8dc75425b33d633e1b8, 93e8e3ee165ae4609a1222b516b573837103d2c3 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: smb: client: prevent races in ->query_interfaces() It was possible for two query interface works to be concurrently trying to update the interfaces. Prevent this by checking and updating iface_last_update under iface_lock.
- Published
- May 6, 2026
- Updated
- Oct 19, 2026
- EPSS
- 0.2% · 18th percentile
- CWE
- CWE-362
Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · Linux
- 8.8
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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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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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.19.1 and later · before 6.6.128
- linux linux kernel6.7 and later · before 6.12.75
- linux linux kernel6.13 and later · before 6.18.16
- linux linux kernel6.19 and later · before 6.19.6
- linux linux kernel5.19
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
- 5.19affected
- aa45dadd34e44fcd6a9df4b395bee5b5633b4cec and later · before 93e8e3ee165ae4609a1222b516b573837103d2c3affected · git
- aa45dadd34e44fcd6a9df4b395bee5b5633b4cec and later · before ab6564f416a6eaf1199200b6100952407b438f7daffected · git
- aa45dadd34e44fcd6a9df4b395bee5b5633b4cec and later · before 6287eefaf21ec805d42f941bd368018cf397a7f5affected · git
- aa45dadd34e44fcd6a9df4b395bee5b5633b4cec and later · before 76cc4faba0343c6db945b8dc75425b33d633e1b8affected · git
- aa45dadd34e44fcd6a9df4b395bee5b5633b4cec and later · before c3c06e42e1527716c54f3ad2ced6a034b5f3a489affected · git
- before 5.19not affected · semver
- 6.6.128 and later · up to and including 6.6.*not affected · semver
- 6.12.75 and later · up to and including 6.12.*not affected · semver
- 6.18.16 and later · up to and including 6.18.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | from 0 | — |
| Debian:13 | linux | before 6.12.85-1 | 6.12.85-1 |
| Debian:14 | linux | before 6.19.6-1 | 6.19.6-1 |
| openSUSE:Leap 16.0 | dtb-aarch64 | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-64kb | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-azure | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-default | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-default-base | before 6.12.0-160000.38.1.160000.2.22 | 6.12.0-160000.38.1.160000.2.22 |
| openSUSE:Leap 16.0 | kernel-docs | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-kvmsmall | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-obs-build | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-obs-qa | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-rt | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-source | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-syms | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| openSUSE:Leap 16.0 | kernel-zfcpdump | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Enterprise Server 16.0 | kernel-azure | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Enterprise Server 16.0 | kernel-docs | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Enterprise Server 16.0 | kernel-kvmsmall | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Enterprise Server 16.0 | kernel-obs-qa | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Enterprise Server 16.0 | kernel-zfcpdump | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Micro 6.2 | kernel-64kb | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Micro 6.2 | kernel-default | before 6.12.0-160000.38.1 | 6.12.0-160000.38.1 |
| SUSE:Linux Micro 6.2 | kernel-default-base | before 6.12.0-160000.38.1.160000.2.23 | 6.12.0-160000.38.1.160000.2.23 |
+4
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- 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 KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- 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 haKEV83Now
Published before and after this one in the same product
- ← EarlierCVE-2026-43234May 6, 2026 · team: avoid NETDEV_CHANGEMTU event when unregistering slave22Monitor
- ← EarlierCVE-2026-43237May 6, 2026 · drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v431Monitor
- Later →CVE-2026-43244May 6, 2026 · kcm: fix zero-frag skb in frag_list on partial sendmsg error22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 6287eefaf21ec805d42f941bd368018cf397a7f5 | Vendor (CNA) |
| Linux Linux | 76cc4faba0343c6db945b8dc75425b33d633e1b8 | Vendor (CNA) |
| Linux Linux | 93e8e3ee165ae4609a1222b516b573837103d2c3 | Vendor (CNA) |
| Linux Linux | ab6564f416a6eaf1199200b6100952407b438f7d | Vendor (CNA) |
| Linux Linux | c3c06e42e1527716c54f3ad2ced6a034b5f3a489 | Vendor (CNA) |
| debian:linux | 6.12.85-1 · Debian:13 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-64kb | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-azure | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default-base | 6.12.0-160000.38.1.160000.2.22 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-docs | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-build | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-rt | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-source | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-syms | 6.12.0-160000.38.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| suse:kernel-64kb | 6.12.0-160000.38.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-azure | 6.12.0-160000.38.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-default | 6.12.0-160000.38.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-default-base | 6.12.0-160000.38.1.160000.2.23 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-docs | 6.12.0-160000.38.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-kvmsmall | 6.12.0-160000.38.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-obs-build | 6.12.0-160000.38.1 · SUSE:Linux Micro Extras 6.2 | Package registry (OSV) |
| suse:kernel-obs-qa | 6.12.0-160000.38.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-rt | 6.12.0-160000.38.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-source | 6.12.0-160000.38.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-syms | 6.12.0-160000.38.1 · SUSE:Linux Micro Extras 6.2 | Package registry (OSV) |
| suse:kernel-zfcpdump | 6.12.0-160000.38.1 · SUSE:Linux Enterprise Server 16.0 | Package 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.
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 researchersFinders, 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.
- TR-26-0196 · May 8, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.