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CVE Record

CVE-2020-11121: u'Possible buffer overflow in WIFI hal process due to usage of memcpy without checking length of destinatio...

u'Possible buffer overflow in WIFI hal process due to usage of memcpy without checking length of destination buffer' in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile in QCM4290, QCS4290, QM215, QSM8350, SA6145P, SA6155, SA6155P, SA8155, SA8155P, SC8180X, SC8180XP, SDX55, SDX55M, SM4250, SM4250P, SM6115, SM6115P, SM6125, SM6250, SM6350, SM7125, SM7225, SM7250, SM7250P, SM8150, SM8150P, SM8250, SM8350, SM8350P, SXR2130, SXR2130P

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2020-11121 is a Qualcomm Snapdragon WiFi HAL memory-safety flaw. The public description says unchecked memcpy usage may overflow a destination buffer. Business impact depends on whether your phones, embedded systems, vehicles, compute devices, or IoT products use the listed Snapdragon chipsets and whether OEM firmware includes Qualcomm’s fix.

Executive priority

Prioritize asset identification and vendor patch verification, especially for managed mobile fleets, connected vehicles, and long-lived IoT deployments. Urgency cannot be fully rated from the supplied sources because severity, exploitability, and fixed versions are not provided.

Technical view

The issue is described as a possible buffer overflow in the WiFi HAL process caused by memcpy without validating destination buffer length. Affected platforms include Snapdragon Auto, Compute, Industrial IoT, and Mobile chipsets listed by Qualcomm/CVE. No CVSS, CWE, patch detail, or exploit mechanism is provided in the supplied sources.

Likely exposure

Exposure is most likely in products using the named Snapdragon chipsets: QCM4290, QCS4290, QM215, QSM8350, SA6145P/SA6155 variants, SA8155 variants, SC8180X variants, SDX55 variants, SM4250 through SM8350 variants, and SXR2130 variants.

Exploitation context

The supplied bundle does not show CISA KEV listing, active exploitation, public exploit availability, or attacker prerequisites. Treat exploitation status as unconfirmed. The vulnerability class is memory corruption in a WiFi-related HAL process, but the sources do not describe reachability or impact.

Researcher notes

Evidence is sparse. The public record identifies a WiFi HAL buffer overflow pattern and broad chipset coverage, but lacks CVSS, CWE, impact, attack vector, affected firmware ranges, and remediation version details. Avoid inferring exploitability beyond memory corruption risk.

Mitigation direction

  • Review Qualcomm’s November 2020 security bulletin and affected chipset list.
  • Check OEM firmware advisories for Qualcomm fixes covering CVE-2020-11121.
  • Update affected devices to vendor-supported firmware containing the relevant Qualcomm security update.
  • For unsupported devices, assess replacement or compensating controls with the device vendor.
  • Track mobile, automotive, compute, and IoT assets separately because OEM patch delivery varies.

Validation and detection

  • Inventory devices and embedded products by Snapdragon chipset and firmware build.
  • Compare chipsets against the CVE and Qualcomm affected-product list.
  • Confirm OEM security patch notes explicitly reference CVE-2020-11121 or the Qualcomm bulletin.
  • Verify deployed firmware versions through MDM, EDR, asset tools, or vendor management consoles.
  • Document unsupported affected assets and owner-approved risk treatment.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-11121 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Qualcomm, Inc.Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon MobileQCM4290, QCS4290, QM215, QSM8350, SA6145P, SA6155, SA6155P, SA8155, SA8155P, SC8180X, SC8180XP, SDX55, SDX55M, SM4250, SM4250P, SM6115, SM6115P, SM6125, SM6250, SM6350, SM7125, SM7225, SM7250, SM7250P, SM8150, SM8150P, SM8250, SM8350, SM8350P, SXR2130, SXR2130PListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.