HOMEVULNERABILITIESCVE-2021-1965
CRITICAL

CVE-2021-1965

CWE-20Published: July 13, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

NVD Source

Technical Analysis

CVE-2021-1965 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Qualcomm252 product(s)
aqt1000 firmwareaqt1000ar9380 firmwarear9380csr8811 firmwarecsr8811ipq4018 firmwareipq4018ipq4019 firmwareipq4019ipq4028 firmwareipq4028+240
Source: NVD CPE · 252 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://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin
PATCHhttps://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin

All References (2)

→
https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletinPatch · Vendor Advisory
→
https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletinPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2021-1965
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedJul 13, 2021

Related CVEs (CWE-20)

CVE-2008-3362
10.0
CVE-2025-34105
10.0
CVE-2025-23202
10.0
CVE-2025-34060
10.0
CVE-2015-5568
10.0
CVE-2011-3496
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-1965 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. CVE data is provided under the NVD usage policy.
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