Home/CVE/Memory corruption due to improper input validation while processing IO control which is nonstandard in Snapdragon Comput
CVE
CVE-2021-1892
Memory corruption due to improper input validation while processing IO control which is nonstandard in Snapdragon Comput
Memory corruption due to improper input validation while processing IO control which is nonstandard in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Wired Infrastructure and Networking.
HIGH · CVSS 8.4
EPSS 0.00162
EPSS exploitation odds0.16% · top 94%
Schedule remediation
- CVSS base score ≥ 7.0
No Sigma yet — build one →
YARA rules0
Look this up elsewhere - one-click external pivots
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How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2021-1892, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked.
EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal.
CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score.
Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits.
PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
EPSS exploitation probability
0.16%
Top 94%odds of exploitation in the next 30 days
CVSS metric silhouette
shape grows toward worst-case
SSVC triage
No SSVC vulnrichment for this CVE. CISA's Vulnrichment program scores newer CVEs (~2024 onwards) plus selected older critical ones. Use the EPSS probability + KEV status to triage instead.
CVSS vector breakdown
Exploitability - how they get in
Attack Vector
Network
Adjacent
Local
Physical
Attack Complexity
Low
High
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Impact - what breaks
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
VECTOR
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLifecycle
- 07 Apr 2021Published to NVD
- 17 Jun 2026Last modified
Every entry is a recorded date - NVD publish/modify, CISA KEV add, public exploit disclosure. No inferred events.
Attack path
Full kill chain
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ATT&CK techniques
1Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.
▤ Build a SIEM detection for these techniques⬡
Weakness Classification
CWE-787Out-of-bounds Write
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Affected Products & Versions
54qualcomm aqt1000 firmwareall versions
qualcomm pm8005 firmwareall versions
qualcomm pm855 firmwareall versions
qualcomm pm855p firmwareall versions
qualcomm pm8998 firmwareall versions
qualcomm pmi8998 firmwareall versions
qualcomm qat3550 firmwareall versions
qualcomm qca1062 firmwareall versions
qualcomm qca1064 firmwareall versions
qualcomm qca2066 firmwareall versions
qualcomm qca6164 firmwareall versions
qualcomm qca6174 firmwareall versions
qualcomm qca6174a firmwareall versions
qualcomm qca6310 firmwareall versions
qualcomm qca6335 firmwareall versions
qualcomm qca6391 firmwareall versions
qualcomm qca6420 firmwareall versions
qualcomm qca6430 firmwareall versions
qualcomm qca6595au firmwareall versions
qualcomm qca9377 firmwareall versions
qualcomm qcn7605 firmwareall versions
qualcomm qcn7606 firmwareall versions
qualcomm qet4100 firmwareall versions
qualcomm qfe2081fc firmwareall versions
qualcomm qfe2082fc firmwareall versions
qualcomm qfe3100 firmwareall versions
qualcomm qfe3440fc firmwareall versions
qualcomm qfe4455fc firmwareall versions
qualcomm qln1035bd firmwareall versions
qualcomm sd8c firmwareall versions
qualcomm sd8cx firmwareall versions
qualcomm sd835 firmwareall versions
qualcomm sd845 firmwareall versions
qualcomm sd850 firmwareall versions
qualcomm sdr8150 firmwareall versions
qualcomm smb1350 firmwareall versions
qualcomm smb1351 firmwareall versions
qualcomm smb1380 firmwareall versions
qualcomm smb1381 firmwareall versions
qualcomm smb1390 firmwareall versions
qualcomm smb2351 firmwareall versions
qualcomm wcd9335 firmwareall versions
qualcomm wcd9340 firmwareall versions
qualcomm wcd9341 firmwareall versions
qualcomm wcn3990 firmwareall versions
qualcomm wcn3998 firmwareall versions
qualcomm wcn6850 firmwareall versions
qualcomm wcn6851 firmwareall versions
qualcomm wcn6855 firmwareall versions
qualcomm wcn6856 firmwareall versions
qualcomm wgr7640 firmwareall versions
qualcomm wsa8810 firmwareall versions
qualcomm wsa8815 firmwareall versions
qualcomm wtr5975 firmwareall versions
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Related CVEs
8CVEs linked to this one by a shared weakness (CWE) or affected product - joins on data already in the engine, with the reason shown per row.
CVE-2002-2227
Buffer underflow in ssldump 0.9b2 and earlier allows remote attackers to cause a...
same CWE-787
CVE-2003-0870
Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to exe...
1
same CWE-787
CVE-2003-1396
Heap-based buffer overflow in Opera 6.05 through 7.10 allows remote attackers to...
1
same CWE-787
CVE-2004-0398
Heap-based buffer overflow in the ne_rfc1036_parse date parsing function for the...
same CWE-787
CVE-2018-11816
Crafted Binder Request Causes Heap UAF in MediaServer
same product
HIGH
CVE-2020-11119
Buffer over-read can happen when the buffer length received from response handle...
same product
HIGH
CVE-2020-11136
Buffer Over-read in audio driver while using malloc management function due to n...
same product
CRITICAL
CVE-2020-11137
Integer multiplication overflow resulting in lower buffer size allocation than e...
same product
CRITICAL
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References & Sources
1Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.