NVD / CVE Program· CNA Linux

CVE-2025-38600: wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()

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: 0.18% (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 4d80d4fa986c5da99042b66bf30a028e7f564156, b3a431fe2e399b2e0cc5f43f7e9d63d63d3710ee.
Severity is disputed: the assigning authority (CNA) scores it 8.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 4d80d4fa986c5da99042b66bf30a028e7f564156, b3a431fe2e399b2e0cc5f43f7e9d63d63d3710ee 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: wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan() The ssid->ssids[] and sreq->ssids[] arrays have MT7925_RNR_SCAN_MAX_BSSIDS elements so this >= needs to be > to prevent an out of bounds access.

MediumCVSS 5.5 · v3.1—No exploit Fix available

Denial of service

BDU:2026-02824

Published: Aug 19, 2025
Updated: Aug 5, 2026
EPSS: 0.1% · 8th percentile
CWE: CWE-193

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CNA vs NVD score

NVD: 5.5
CNA · Linux: 8.8; 3.3 point gap

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

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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.

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 kernel6.16

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
- 6.16affected
- 8284815ca161e0fa0861cc4085f1c0141e10a34d and later · before 4d80d4fa986c5da99042b66bf30a028e7f564156affected · git
- 8284815ca161e0fa0861cc4085f1c0141e10a34d and later · before b3a431fe2e399b2e0cc5f43f7e9d63d63d3710eeaffected · git
- before 6.16not affected · semver
- 6.16.1 and later · up to and including 6.16.*not affected · semver
- 6.17 and laternot affected · original_commit_for_fix

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-2025-38598Aug 19, 2025 · drm/amdgpu: fix use-after-free in amdgpu_userq_suspend+0x51a/0x5a0
31Monitor
← EarlierCVE-2025-38599Aug 19, 2025 · wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()
28Monitor
Later →CVE-2025-38602Aug 19, 2025 · iwlwifi: Add missing check for alloc_ordered_workqueue
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 / package	Fixed version	Source
Linux Linux	4d80d4fa986c5da99042b66bf30a028e7f564156	Vendor (CNA)
Linux Linux	b3a431fe2e399b2e0cc5f43f7e9d63d63d3710ee	Vendor (CNA)

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.

CVE-2026-53088309 days apartnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb
39Monitor
CVE-2026-53309311 days apartocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison
39Monitor
CVE-2026-64047334 days apartnet: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring
39Monitor
CVE-2024-57990174 days apartwifi: mt76: mt7925: fix off by one in mt7925_load_clc()
31Monitor
CVE-2026-52907294 days apartmedia: rockchip: rkcif: fix off by one bugs
31Monitor
CVE-2024-47682302 days apartscsi: sd: Fix off-by-one error in sd_read_block_characteristics()
31Monitor

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)

CWE-193 · Off-by-one Error

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

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/4d80d4fa986c5da99042b66bf30a028e7f564156

Show all references (1 more)

git.kernel.org/stable/c/b3a431fe2e399b2e0cc5f43f7e9d63d63d3710ee

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

All records