What it is
CVE-2026-21385 is Integer Overflow or Wraparound in Graphics affecting Qualcomm Snapdragon. Memory corruption while using alignments for memory allocation.
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2026-21385
Integer Overflow or Wraparound in Graphics
Qualcomm / Snapdragon · 5G Fixed Wireless Access Platform
- Severity
- CVSS 7.8 · High
- Confidence
- Confirmed
- Exploit status
- Exploited in the wild
- EPSS
- 1.3%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.
Who is affected?
Qualcomm / Snapdragon 5g fixed wireless access platform.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Memory corruption while using alignments for memory allocation
Memory corruption while using alignments for memory allocation.
Vendor
Product
Affected
Status
Qualcomm, Inc.
Affected
Snapdragon
5G Fixed Wireless Access Platform
APQ8098
AR8031
AR8035
C-V2X 9150
CSRA6620
CSRA6640
FastConnect 6200
FastConnect 6700
FastConnect 6800
FastConnect 6900
FastConnect 7800
Flight RB5 5G Platform
FSM100 Platform
G1 Gen 1
G2 Gen 1
IQ6 Series Platform
IQ8 Series Platform
IQ9 Series Platform
LeMans_AU_LGIT
LeMansAU
MDM9250
MDM9628
Milos
Monaco_IOT
Netrani
Orne
Palawan25
Pandeiro
QAM8255P
QAM8295P
QAMSRV1H
QAMSRV1M
QCA2066
QCA6174A
QCA6391
QCA6564A
QCA6564AU
QCA6574
QCA6574A
QCA6574AU
QCA6584AU
QCA6595
QCA6595AU
QCA6678AQ
QCA6688AQ
QCA6696
QCA6698AQ
QCA6698AU
QCA6797AQ
QCA8081
QCA8337
QCA8695AU
QCA9367
QCA9377
QCM2290
QCM4325
QCM4490
QCM5430
QCM6125
QCM6490
QCN6024
QCN9011
QCN9012
QCN9024
QCS2290
QCS4290
QCS4490
QCS8550
QLN1083BD
QLN1086BD
QMP1000
QPA1083BD
QPA1086BD
QRB5165M
QRB5165N
Qualcomm 215 Mobile Platform
Qualcomm Video Collaboration VC1 Platform
Qualcomm Video Collaboration VC3 Platform
Qualcomm Video Collaboration VC5 Platform
QXM1083
QXM1086
QXM1093
QXM1094
QXM1095
QXM1096
Robotics RB2 Platform
Robotics RB5 Platform
SA4150P
SA4155P
SA6145P
SA6150P
SA6155
SA6155P
SA7255P
SA7775P
SA8145P
SA8150P
SA8155
SA8155P
SA8195P
SA8255P
SA8295P
SA8620P
SA8770P
SA9000P
SAR1165P
SAR1250P
SAR2130P
SAR2230P
SC8380XP
SD 8 Gen1 5G
SD626
SD662
SD865 5G
SDA660
SDM429W
SDX61
SM6225P
SM6650P
SM7325P
SM7435
SM7550
SM7550P
SM7635P
SM7675
SM7675P
SM8475P
SM8550P
SM8635
SM8635P
SM8650Q
SM8750P
Smart Audio 400 Platform
Smart Display 200 Platform
Snapdragon 4 Gen 1 Mobile Platform
Snapdragon 4 Gen 2 Mobile Platform
Snapdragon 429 Mobile Platform
Snapdragon 460 Mobile Platform
Snapdragon 480 5G Mobile Platform
Snapdragon 480+ 5G Mobile Platform
Snapdragon 6 Gen 1 Mobile Platform
Snapdragon 6 Gen 3 Mobile Platform
Snapdragon 6 Gen 4 Mobile Platform
Snapdragon 625 Mobile Platform
Snapdragon 626 Mobile Platform
Snapdragon 660 Mobile Platform
Snapdragon 662 Mobile Platform
Snapdragon 680 4G Mobile Platform
Snapdragon 685 4G Mobile Platform
Snapdragon 690 5G Mobile Platform
Snapdragon 695 5G Mobile Platform
Snapdragon 7 Gen 1 Mobile Platform
Snapdragon 7+ Gen 2 Mobile Platform
Snapdragon 778G 5G Mobile Platform
Snapdragon 778G+ 5G Mobile Platform
Snapdragon 782G Mobile Platform
Snapdragon 7c+ Gen 3 Compute
Snapdragon 7s Gen 3 Mobile Platform
Snapdragon 8 Elite
Snapdragon 8 Elite Gen 5
Snapdragon 8 Gen 1 Mobile Platform
Snapdragon 8 Gen 2 Mobile Platform
Snapdragon 8 Gen 3 Mobile Platform
Snapdragon 8+ Gen 1 Mobile Platform
Snapdragon 8+ Gen 2 Mobile Platform
Snapdragon 820 Automotive Platform
Snapdragon 820Am
Snapdragon 865 5G Mobile Platform
Snapdragon 865+ 5G Mobile Platform
Snapdragon 870 5G Mobile Platform
Snapdragon 888 5G Mobile Platform
Snapdragon 888+ 5G Mobile Platform
Snapdragon AR1 Gen 1 Platform
Snapdragon AR1+ Gen 1 Platform
Snapdragon Auto 5G Modem-RF
Snapdragon W5+ Gen 1 Wearable Platform
Snapdragon X12 LTE Modem
Snapdragon X5 LTE Modem
Snapdragon X53 5G Modem-RF System
Snapdragon X55 5G Modem-RF System
Snapdragon X65 5G Modem-RF System
Snapdragon XR2 5G Platform
Snapdragon XR2+ Gen 1 Platform
SRV1H
SRV1M
SW5100
SW5100P
SW6100
SW6100P
SXR2230P
SXR2250P
SXR2330P
SXR2350P
Themisto
Vision Intelligence 100 Platform
Vision Intelligence 200 Platform
Vision Intelligence 400 Platform
WCD9326
WCD9330
WCD9335
WCD9341
WCD9360
WCD9370
WCD9371
WCD9375
WCD9378
WCD9380
WCD9385
WCD9390
WCD9395
WCN3615
WCN3620
WCN3660B
WCN3680B
WCN3910
WCN3950
WCN3980
WCN3988
WCN3990
WCN6450
WCN6650
WCN6755
WCN7860
WCN7861
WCN7880
WCN7881
WSA8810
WSA8815
WSA8830
WSA8832
WSA8835
WSA8840
WSA8845
WSA8845H
Affected
- Published
- 02 Mar 2026
- Exploitation Reported
- 01 Jun 2026
- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
Tags
cisa
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2026-21385
- docs.qualcomm.com/product/publicresources/securitybulletin/mar... docs.qualcomm.com · CVE Record https://docs.qualcomm.com/product/publicresources/securitybulletin/ma...
Exploitation evidence
Why Previdian marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
A trusted third party reported exploitation.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the Previdian Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 11:37 UTC |
| CISA | 2026-06-02 14:03 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- User-Agents
- Callback hosts
- 0
- 0
- 0
Request targets and User-Agents available in Pro. Callback host details available in Enterprise.
Scanner coverage
No scanner integrations recorded yet.
Virtual patch status
No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
7.8
High
Potential damage if exploited. Separate from whether attackers are using it.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.3%
Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.
Weaknesses
Timeline
From disclosure to observed exploitation
-
14:03 UTC
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
11:37 UTC
Added to Previdian KEV Feed
High-confidence, third-party attested exploitation
-
16:53 UTC
CVE published
Vulnerability disclosed publicly
-
04:35 UTC
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2026-21385
Sample API response{
"cve_id": "CVE-2026-21385",
"confidence": "Confirmed",
"cvss_score": 7.8,
"cvss_estimated": false,
"epss_score": 0.01293,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}