vulnerability
CVE-2026-21385
7.8
High
KEV · Exploited in wildEPSS 1%Patch available
Memory corruption while using alignments for memory allocation.
exploited
Yes, in CISA KEV since 3 Mar 2026fix by 24 Mar 2026 (CISA deadline for US federal agencies)unvetted proof-of-concept code on github
fix
Patch available see the advisory in the references
likelihood
EPSS 1.3%
Published 2 Mar 2026Analysed here 2 Nov 2026CVSS scored by the publisher (CNA)
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
triage
Can a WAF block it? No. The attack needs local access to the machine, so a WAF is not on its path.
Also consider: patch
Based on the attack vector (local or physical access). We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
cvss vector
attack vectorlocalattack complexitylowprivileges requiredlowuser interactionnonescopeunchangedconfidentialityhighintegrityhighavailabilityhigh
CVSS 3.1 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
common questions
Is CVE-2026-21385 being exploited?
Yes. CVE-2026-21385 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-21385?
CVE-2026-21385 is rated High with a CVSS score of 7.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-21385?
Yes. A fix has been recorded for CVE-2026-21385. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21385 affect?
CVE-2026-21385 affects qualcomm:sm7675p_firmware, qualcomm:sm8475p_firmware, qualcomm:sm8550p_firmware, qualcomm:sm8635_firmware, and 26 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
executive summary
technical analysis
affected
qualcomm:sm7675p_firmwarequalcomm:sm8475p_firmwarequalcomm:sm8550p_firmwarequalcomm:sm8635_firmwarequalcomm:sm8635p_firmwarequalcomm:sm8650q_firmwarequalcomm:sm8750p_firmwarequalcomm:smart_audio_400_platform_firmwarequalcomm:smart_display_200_platform_firmwarequalcomm:snapdragon_4_gen_1_mobile_platform_firmwarequalcomm:snapdragon_4_gen_2_mobile_platform_firmwarequalcomm:snapdragon_429_mobile_platform_firmwarequalcomm:snapdragon_460_mobile_platform_firmwarequalcomm:snapdragon_480\+_5g_mobile_platform_firmwarequalcomm:snapdragon_480_5g_mobile_platform_firmwarequalcomm:snapdragon_6_gen_1_mobile_platform_firmwarequalcomm:snapdragon_6_gen_3_mobile_platform_firmwarequalcomm:snapdragon_6_gen_4_mobile_platform_firmwarequalcomm:snapdragon_625_mobile_platform_firmwarequalcomm:snapdragon_626_mobile_platform_firmwarequalcomm:snapdragon_660_mobile_platform_firmwarequalcomm:snapdragon_662_mobile_platform_firmwarequalcomm:snapdragon_680_4g_mobile_platform_firmwarequalcomm:snapdragon_685_4g_mobile_platform_firmwarequalcomm:snapdragon_690_5g_mobile_platform_firmwarequalcomm:snapdragon_695_5g_mobile_platform_firmwarequalcomm:snapdragon_7\+_gen_2_mobile_platform_firmwarequalcomm:snapdragon_7_gen_1_mobile_platform_firmwarequalcomm:snapdragon_778g\+_5g_mobile_platform_firmwarequalcomm:snapdragon_778g_5g_mobile_platform_firmware
affected versions
Qualcomm, Inc. Snapdragon
- affected5G Fixed Wireless Access Platform
- affectedAPQ8098
- affectedAR8031
- affectedAR8035
- affectedC-V2X 9150
- affectedCSRA6620
- affectedCSRA6640
- affectedFastConnect 6200
- affectedFastConnect 6700
- affectedFastConnect 6800
- affectedFastConnect 6900
- affectedFastConnect 7800
- affectedFlight RB5 5G Platform
- affectedFSM100 Platform
- affectedG1 Gen 1
- affectedG2 Gen 1
- affectedIQ6 Series Platform
- affectedIQ8 Series Platform
- affectedIQ9 Series Platform
- affectedLeMans_AU_LGIT
- affectedLeMansAU
- affectedMDM9250
- affectedMDM9628
- affectedMilos
- affectedMonaco_IOT
- affectedNetrani
- affectedOrne
- affectedPalawan25
- affectedPandeiro
- affectedQAM8255P
- affectedQAM8295P
- affectedQAMSRV1H
- affectedQAMSRV1M
- affectedQCA2066
- affectedQCA6174A
- affectedQCA6391
- affectedQCA6564A
- affectedQCA6564AU
- affectedQCA6574
- affectedQCA6574A
- affectedQCA6574AU
- affectedQCA6584AU
- affectedQCA6595
- affectedQCA6595AU
- affectedQCA6678AQ
- affectedQCA6688AQ
- affectedQCA6696
- affectedQCA6698AQ
- affectedQCA6698AU
- affectedQCA6797AQ
- affectedQCA8081
- affectedQCA8337
- affectedQCA8695AU
- affectedQCA9367
- affectedQCA9377
- affectedQCM2290
- affectedQCM4325
- affectedQCM4490
- affectedQCM5430
- affectedQCM6125
- affectedQCM6490
- affectedQCN6024
- affectedQCN9011
- affectedQCN9012
- affectedQCN9024
- affectedQCS2290
- affectedQCS4290
- affectedQCS4490
- affectedQCS8550
- affectedQLN1083BD
- affectedQLN1086BD
- affectedQMP1000
- affectedQPA1083BD
- affectedQPA1086BD
- affectedQRB5165M
- affectedQRB5165N
- affectedQualcomm 215 Mobile Platform
- affectedQualcomm Video Collaboration VC1 Platform
- affectedQualcomm Video Collaboration VC3 Platform
- affectedQualcomm Video Collaboration VC5 Platform
- affectedQXM1083
- affectedQXM1086
- affectedQXM1093
- affectedQXM1094
- affectedQXM1095
- affectedQXM1096
- affectedRobotics RB2 Platform
- affectedRobotics RB5 Platform
- affectedSA4150P
- affectedSA4155P
- affectedSA6145P
- affectedSA6150P
- affectedSA6155
- affectedSA6155P
- affectedSA7255P
- affectedSA7775P
- affectedSA8145P
- affectedSA8150P
- affectedSA8155
- affectedSA8155P
- affectedSA8195P
- affectedSA8255P
- affectedSA8295P
- affectedSA8620P
- affectedSA8770P
- affectedSA9000P
- affectedSAR1165P
- affectedSAR1250P
- affectedSAR2130P
- affectedSAR2230P
- affectedSC8380XP
- affectedSD 8 Gen1 5G
- affectedSD626
- affectedSD662
- affectedSD865 5G
- affectedSDA660
- affectedSDM429W
- affectedSDX61
- affectedSM6225P
- affectedSM6650P
- affectedSM7325P
- affectedSM7435
- affectedSM7550
- affectedSM7550P
- affectedSM7635P
- affectedSM7675
- affectedSM7675P
- affectedSM8475P
- affectedSM8550P
- affectedSM8635
- affectedSM8635P
- affectedSM8650Q
- affectedSM8750P
- affectedSmart Audio 400 Platform
- affectedSmart Display 200 Platform
- affectedSnapdragon 4 Gen 1 Mobile Platform
- affectedSnapdragon 4 Gen 2 Mobile Platform
- affectedSnapdragon 429 Mobile Platform
- affectedSnapdragon 460 Mobile Platform
- affectedSnapdragon 480 5G Mobile Platform
- affectedSnapdragon 480+ 5G Mobile Platform
- affectedSnapdragon 6 Gen 1 Mobile Platform
- affectedSnapdragon 6 Gen 3 Mobile Platform
- affectedSnapdragon 6 Gen 4 Mobile Platform
- affectedSnapdragon 625 Mobile Platform
- affectedSnapdragon 626 Mobile Platform
- affectedSnapdragon 660 Mobile Platform
- affectedSnapdragon 662 Mobile Platform
- affectedSnapdragon 680 4G Mobile Platform
- affectedSnapdragon 685 4G Mobile Platform
- affectedSnapdragon 690 5G Mobile Platform
- affectedSnapdragon 695 5G Mobile Platform
- affectedSnapdragon 7 Gen 1 Mobile Platform
- affectedSnapdragon 7+ Gen 2 Mobile Platform
- affectedSnapdragon 778G 5G Mobile Platform
- affectedSnapdragon 778G+ 5G Mobile Platform
- affectedSnapdragon 782G Mobile Platform
- affectedSnapdragon 7c+ Gen 3 Compute
- affectedSnapdragon 7s Gen 3 Mobile Platform
- affectedSnapdragon 8 Elite
- affectedSnapdragon 8 Elite Gen 5
- affectedSnapdragon 8 Gen 1 Mobile Platform
- affectedSnapdragon 8 Gen 2 Mobile Platform
- affectedSnapdragon 8 Gen 3 Mobile Platform
- affectedSnapdragon 8+ Gen 1 Mobile Platform
- affectedSnapdragon 8+ Gen 2 Mobile Platform
- affectedSnapdragon 820 Automotive Platform
- affectedSnapdragon 820Am
- affectedSnapdragon 865 5G Mobile Platform
- affectedSnapdragon 865+ 5G Mobile Platform
- affectedSnapdragon 870 5G Mobile Platform
- affectedSnapdragon 888 5G Mobile Platform
- affectedSnapdragon 888+ 5G Mobile Platform
- affectedSnapdragon AR1 Gen 1 Platform
- affectedSnapdragon AR1+ Gen 1 Platform
- affectedSnapdragon Auto 5G Modem-RF
- affectedSnapdragon W5+ Gen 1 Wearable Platform
- affectedSnapdragon X12 LTE Modem
- affectedSnapdragon X5 LTE Modem
- affectedSnapdragon X53 5G Modem-RF System
- affectedSnapdragon X55 5G Modem-RF System
- affectedSnapdragon X65 5G Modem-RF System
- affectedSnapdragon XR2 5G Platform
- affectedSnapdragon XR2+ Gen 1 Platform
- affectedSRV1H
- affectedSRV1M
- affectedSW5100
- affectedSW5100P
- affectedSW6100
- affectedSW6100P
- affectedSXR2230P
- affectedSXR2250P
- affectedSXR2330P
- affectedSXR2350P
- affectedThemisto
- affectedVision Intelligence 100 Platform
- affectedVision Intelligence 200 Platform
- affectedVision Intelligence 400 Platform
- affectedWCD9326
- affectedWCD9330
- affectedWCD9335
- affectedWCD9341
- affectedWCD9360
- affectedWCD9370
- affectedWCD9371
- affectedWCD9375
- affectedWCD9378
- affectedWCD9380
- affectedWCD9385
- affectedWCD9390
- affectedWCD9395
- affectedWCN3615
- affectedWCN3620
- affectedWCN3660B
- affectedWCN3680B
- affectedWCN3910
- affectedWCN3950
- affectedWCN3980
- affectedWCN3988
- affectedWCN3990
- affectedWCN6450
- affectedWCN6650
- affectedWCN6755
- affectedWCN7860
- affectedWCN7861
- affectedWCN7880
- affectedWCN7881
- affectedWSA8810
- affectedWSA8815
- affectedWSA8830
- affectedWSA8832
- affectedWSA8835
- affectedWSA8840
- affectedWSA8845
- affectedWSA8845H
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
public exploits
Unvetted proof-of-concept code on GitHub: 1 GitHub proof of concept
GitHub proofs of concept
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
cisa ssvc
- exploitation
- active
- automatable
- no
- technical impact
- total
Assessed by CISA 2 Mar 2026 (SSVC 2.0.3).
timeline
- 2 Mar 2026CISA SSVC assessment: exploitation active
- 2 Mar 2026Published · 1 day later
- 3 Mar 2026Added to CISA KEV (exploited in the wild) · same day later
- 4 Mar 2026CVE record last updated · 1 day later
- 12 Mar 2026First proof-of-concept repository on GitHub (unvetted) · 8 days later
- 24 Mar 2026CISA remediation due date (US federal agencies) · 12 days later
- 2 Nov 2026Analysed by vulneraibility.com · 224 days (about 7 months) later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
3 references in the CVE record: 1 advisory, 2 links
- Advisorysource.android.com /docs/security/bulletin/2026/2026-03-01
- Linkdocs.qualcomm.com /product/publicresources/securitybulletin/march-2026-bulletin.html
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21385
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.