HIGH
CVE-2026-21367
CWE-126Published: April 6, 2026· Updated: Apr 8, 2026
7.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:10.5th
Official Description
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
Technical Analysis
CVE-2026-21367 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
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 availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Qualcomm300 products
ar8035 firmwarear8035cologne firmwarecolognecsr8811 firmwarecsr8811fastconnect 6200 firmwarefastconnect 6200fastconnect 6700 firmwarefastconnect 6700fastconnect 6900 firmwarefastconnect 6900+288 more
Source: NVD CPE · 300 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
All References (1)
Quick Facts
CVE IDCVE-2026-21367
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-126
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedApr 6, 2026
Related CVEs (CWE-126)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-21367 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.