Security readout for executives and security teams
Plain-English summary
A flaw in Qualcomm Snapdragon modem software can make the modem get stuck in a busy loop while handling certain input. For affected devices, the practical concern is reliability or service disruption rather than confirmed data theft. The source bundle does not provide a severity score or confirmed exploitation.
Executive priority
Treat this as a hardware-firmware exposure management issue with unknown severity. Prioritize visibility into affected Snapdragon-based assets and confirm OEM update coverage, especially for operationally important mobile, vehicle, compute, or connectivity fleets.
Technical view
CVE-2020-11186 describes improper validation of input while parsing histogram dimensions in Qualcomm Snapdragon Auto, Compute, Connectivity, and Mobile modem-related products. The stated failure mode is an infinite busy loop. No CVSS, CWE, exploit status, or detailed remediation text is included in the provided bundle.
Likely exposure
Exposure is most likely through OEM products using the listed Qualcomm Snapdragon chipsets or components, including mobile, auto, compute, and connectivity platforms. Software-only environments without affected Qualcomm hardware are not indicated by the sources.
Exploitation context
The bundle marks KEV as false and provides no cited evidence of active exploitation. The available description supports an availability-impact interpretation: a modem can become stuck in busy mode after improper input validation during parsing.
Researcher notes
Evidence is limited to the CVE description, affected Qualcomm product list, KEV=false, and the Qualcomm bulletin reference. The bundle does not include CVSS metrics, CWE mapping, exploit prerequisites, affected firmware versions, or specific fixed versions.
Mitigation direction
- Check Qualcomm's March 2021 security bulletin for vendor guidance.
- Check OEM firmware advisories for affected device models.
- Prioritize firmware updates for exposed mobile, auto, compute, and connectivity assets.
- Track devices that cannot receive OEM firmware updates.
- Escalate unsupported affected hardware for lifecycle risk review.
Validation and detection
- Inventory devices using the listed Qualcomm Snapdragon components.
- Map device models to OEM security bulletin coverage.
- Verify firmware or security patch levels against OEM guidance.
- Document systems with affected hardware and no update path.
- Monitor vendor advisories for revised severity or remediation details.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-11186 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qualcomm.com/company/product-security/bulletins/march-2021-bulletinCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.