Back to the CVE list
CVE-2026-21369

Out-of-bounds write in Qualcomm Fastconnect 6200 Firmware

CVSS score

5.3

EPSS probability

%0.1

Risk score

0.0

Published

3 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach CVE AI Research

CVE-2026-21369 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

Memory Corruption when handling flash commands due to outdated LED count values being used after userspace modification.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-21369 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1qualcommfastconnect 6200 firmware View
2qualcommfastconnect 6200 View
3qualcommfastconnect 6700 firmware View
4qualcommfastconnect 6700 View
5qualcommfastconnect 6900 firmware View
6qualcommfastconnect 6900 View
7qualcommfastconnect 7800 firmware View
8qualcommfastconnect 7800 View
9qualcommg1 gen 1 firmware View
10qualcommg1 gen 1 View
11qualcommwcd9380 firmware View
12qualcommwcd9380 View
13qualcommwcd9385 firmware View
14qualcommwcd9385 View
15qualcommwcd9390 firmware View
16qualcommwcd9390 View
17qualcommwcd9395 firmware View
18qualcommwcd9395 View
19qualcommwcn3910 firmware View
20qualcommwcn3910 View
21qualcommwcn3950 firmware View
22qualcommwcn3950 View
23qualcommwcn3988 firmware View
24qualcommwcn3988 View
25qualcommwcn6450 firmware View
26qualcommwcn6450 View
27qualcommwcn6650 firmware View
28qualcommwcn6650 View
29qualcommwcn6755 firmware View
30qualcommwcn6755 View
31qualcommwcn7860 firmware View
32qualcommwcn7860 View
33qualcommwcn7861 firmware View
34qualcommwcn7861 View
35qualcommwcn7881 firmware View
36qualcommwcn7881 View
37qualcommwsa8810 firmware View
38qualcommwsa8810 View
39qualcommwsa8815 firmware View
40qualcommwsa8815 View
41qualcommwsa8830 firmware View
42qualcommwsa8830 View
43qualcommwsa8832 firmware View
44qualcommwsa8832 View
45qualcommwsa8835 firmware View
46qualcommwsa8835 View
47qualcommwsa8840 firmware View
48qualcommwsa8840 View
49qualcommwsa8845 firmware View
50qualcommwsa8845 View
51qualcommwsa8845h firmware View
52qualcommwsa8845h View
53qualcommx1e80100 firmware View
54qualcommx1e80100 View
55qualcommxrv7209 firmware View
56qualcommxrv7209 View
57qualcommxrv9209 firmware View
58qualcommxrv9209 View
59qualcommg3x gen 2 firmware View
60qualcommg3x gen 2 View
61qualcommiq-9075 firmware View
62qualcommiq-9075 View
63qualcommkalpeni firmware View
64qualcommkalpeni View
65qualcommlemans au lgit firmware View
66qualcommlemans au lgit View
67qualcommlemansau firmware View
68qualcommlemansau View
69qualcommpandeiro firmware View
70qualcommpandeiro View
71qualcommqam8255p firmware View
72qualcommqam8255p View
73qualcommqam8295p firmware View
74qualcommqam8295p View
75qualcommqamsrv1h firmware View
76qualcommqamsrv1h View
77qualcommqamsrv1m firmware View
78qualcommqamsrv1m View
79qualcommqca6574au firmware View
80qualcommqca6574au View
81qualcommqca6595 firmware View
82qualcommqca6595 View
83qualcommqca6688aq firmware View
84qualcommqca6688aq View
85qualcommqca6696 firmware View
86qualcommqca6696 View
87qualcommqca6698aq firmware View
88qualcommqca6698aq View
89qualcommqca6797aq firmware View
90qualcommqca6797aq View
91qualcommqca8695au firmware View
92qualcommqca8695au View
93qualcommqcm2290 firmware View
94qualcommqcm2290 View
95qualcommqcm4325 firmware View
96qualcommqcm4325 View
97qualcommqcm4490 firmware View
98qualcommqcm4490 View
99qualcommqcm5430 firmware View
100qualcommqcm5430 View
101qualcommqcm6490 firmware View
102qualcommqcm6490 View
103qualcommqcm8838 firmware View
104qualcommqcm8838 View
105qualcommqcs2290 firmware View
106qualcommqcs2290 View
107qualcommqcs4290 firmware View
108qualcommqcs4290 View
109qualcommqcs4490 firmware View
110qualcommqcs4490 View
111qualcommqln1083bd firmware View
112qualcommqln1083bd View
113qualcommqln1086bd firmware View
114qualcommqln1086bd View
115qualcommqpa1083bd firmware View
116qualcommqpa1083bd View
117qualcommqpa1086bd firmware View
118qualcommqpa1086bd View
119qualcommvideo collaboration vc3 platform firmware View
120qualcommvideo collaboration vc3 platform View
121qualcommqxm1093 firmware View
122qualcommqxm1093 View
123qualcommqxm1094 firmware View
124qualcommqxm1094 View
125qualcommqxm1095 firmware View
126qualcommqxm1095 View
127qualcommqxm1096 firmware View
128qualcommqxm1096 View
129qualcommsa6155p firmware View
130qualcommsa6155p View
131qualcommsa7255p firmware View
132qualcommsa7255p View
133qualcommsa7775p firmware View
134qualcommsa7775p View
135qualcommsa8155p firmware View
136qualcommsa8155p View
137qualcommsa8195p firmware View
138qualcommsa8195p View
139qualcommsa8255p firmware View
140qualcommsa8255p View
141qualcommsa8295p firmware View
142qualcommsa8295p View
143qualcommsa8620p firmware View
144qualcommsa8620p View
145qualcommsa8770p firmware View
146qualcommsa8770p View
147qualcommsa9000p firmware View
148qualcommsa9000p View
149qualcommsar2130p firmware View
150qualcommsar2130p View
151qualcommsc8380xp firmware View
152qualcommsc8380xp View
153qualcommsd662 firmware View
154qualcommsd662 View
155qualcommsd865 5g firmware View
156qualcommsd865 5g View
157qualcommsdr753 firmware View
158qualcommsdr753 View
159qualcommsm6225p firmware View
160qualcommsm6225p View
161qualcommsm7525 firmware View
162qualcommsm7525 View
163qualcommsm7550 firmware View
164qualcommsm7550 View
165qualcommsm7550p firmware View
166qualcommsm7550p View
167qualcommsm8550p firmware View
168qualcommsm8550p View
169qualcommsnapdragon 4 gen 1 mobile platform firmware View
170qualcommsnapdragon 4 gen 1 mobile platform View
171qualcommsnapdragon 460 mobile platform firmware View
172qualcommsnapdragon 460 mobile platform View
173qualcommsnapdragon 480 5g mobile platform firmware View
174qualcommsnapdragon 480 5g mobile platform View
175qualcommsnapdragon 662 mobile platform firmware View
176qualcommsnapdragon 662 mobile platform View
177qualcommsnapdragon 680 4g mobile platform firmware View
178qualcommsnapdragon 680 4g mobile platform View
179qualcommsnapdragon 685 4g mobile platform firmware View
180qualcommsnapdragon 685 4g mobile platform View
181qualcommsnapdragon 695 5g mobile platform firmware View
182qualcommsnapdragon 695 5g mobile platform View
183qualcommsnapdragon 8 elite firmware View
184qualcommsnapdragon 8 elite View
185qualcommsnapdragon 8 gen 2 mobile platform firmware View
186qualcommsnapdragon 8 gen 2 mobile platform View
187qualcommsnapdragon ar1 gen 1 platform firmware View
188qualcommsnapdragon ar1 gen 1 platform View
189qualcommsnapdragon xr2 5g platform firmware View
190qualcommsnapdragon xr2 5g platform View
191qualcommsnapdragon xr2+ gen 1 platform firmware View
192qualcommsnapdragon xr2+ gen 1 platform View
193qualcommsnapdragon wear elite platform firmware View
194qualcommsnapdragon wear elite platform View
195qualcommsrv1h firmware View
196qualcommsrv1h View
197qualcommsrv1m firmware View
198qualcommsrv1m View
199qualcommsxr2230p firmware View
200qualcommsxr2230p View
Total affected vendors: 1|Products: 200

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.3CVSS V31MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:LNVD
5.3CVSS V31MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
reference

Yama veya çözüm referansı

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-21369 is associated with the following CWEs:

CWE-787: Out-of-bounds Write

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-21369 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.htmlpatch

CVSS Vector Radar Chart

5.3 / 10
Attack VectorLocalComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)Low

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

Q
qualcomm logo
qualcomm

Weakness Type (CWE & CAPEC)

CWE-787

Similar Vulnerabilities

6.5
CVE-2020-3702Vulnerability in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure And Networking
QI
Qualcomm, Inc. logo
VendorQualcomm, Inc.ProductSnapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking+27 etkilenen
Patch status unknownEPSS %06 y ago

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free keyDocumentation
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-21369"