Security readout for executives and security teams
Plain-English summary
This is a Qualcomm Snapdragon platform flaw where a privileged internal stream may read secure resources because memory isolation was configured incorrectly. The business risk is mainly exposure of sensitive device data on affected hardware, not remote takeover from the network based on the supplied CVSS data.
Executive priority
Treat this as a moderate priority hardware-firmware exposure issue. It is not evidenced as remotely exploitable or actively exploited, but confidentiality impact is high on affected devices. Prioritize asset identification, vendor confirmation, and firmware update planning.
Technical view
CVE-2021-30345 affects listed Qualcomm Snapdragon Industrial IoT, Mobile, Wearables, Wired Infrastructure and Networking components. The issue is improper SMMU configuration: RPM secure Stream can access secure resources. CVSS 3.1 is 6.5 with local attack vector, low privileges, no user interaction, changed scope, and high confidentiality impact.
Likely exposure
Exposure is likely in devices or products using the listed Qualcomm chipsets and firmware branches. Actual risk depends on OEM integration, firmware version, and whether the device permits local low-privileged code execution. The source bundle does not provide CPEs or a complete product-by-product mapping.
Exploitation context
The source bundle does not indicate known active exploitation, and KEV is false. The CVSS vector describes local exploitation requiring low privileges and no user interaction. No public exploit details are provided in the supplied sources, and no remote attack path is evidenced here.
Researcher notes
Key uncertainty is OEM mapping. Qualcomm names affected components and product families, but the bundle does not include exact firmware versions, CPEs, proof-of-fix details, or exploit evidence. Analysis should stay focused on hardware inventory, firmware lineage, and vendor bulletin correlation.
Mitigation direction
- Identify devices using the listed Qualcomm chipsets and affected Snapdragon product families.
- Check Qualcomm April 2022 bulletin and OEM advisories for firmware or BSP updates.
- Apply vendor or OEM firmware updates where available after normal compatibility testing.
- For unsupported devices, reduce local code execution opportunities and restrict physical or administrative access.
- Track compensating controls until the device vendor confirms remediation status.
Validation and detection
- Compare hardware inventories against the affected Qualcomm component list in the source bundle.
- Confirm current firmware versions against Qualcomm and OEM security bulletin guidance.
- Ask suppliers whether CVE-2021-30345 is fixed in shipped firmware images.
- Prioritize validation on devices handling sensitive data or deployed in shared-access environments.
- Document devices with unknown chipset or firmware provenance for follow-up.
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-2021-30345 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N24Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qualcomm.com/company/product-security/bulletins/april-2022-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.