HOMEVULNERABILITIESCVE-2026-43110
HIGH

CVE-2026-43110

Published: May 6, 2026· Updated: May 8, 2026

8.8
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.8th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: validate bsscfg indices in IF events

brcmf_fweh_handle_if_event() validates the firmware-provided interface

index before it touches drvr->iflist[], but it still uses the raw

bsscfgidx field as an array index without a matching range check.

Reject IF events whose bsscfg index does not fit in drvr->iflist[]

before indexing the interface array.

[add missing wifi prefix]

NVD Source

Technical Analysis

CVE-2026-43110 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d
PATCHhttps://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d
PATCHhttps://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6
PATCHhttps://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e
PATCHhttps://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb

All References (5)

→
https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52dPatch
→
https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12dPatch
→
https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6Patch
→
https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8ePatch
→
https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bbPatch

Quick Facts

CVE IDCVE-2026-43110
CVSS Score8.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43110 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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