Security readout for executives and security teams
Plain-English summary
CVE-2021-30341 is a critical Qualcomm Snapdragon vulnerability where malformed DSM packet handling can corrupt memory. The CVSS score is 9.8, reflecting possible network-based attack without authentication or user interaction. Business impact depends on whether affected Snapdragon chipsets are present in deployed products or supplier components.
Executive priority
Treat this as a high-priority supplier and firmware exposure review. The severity is critical, but urgency should be driven by confirmed affected chipsets, reachable interfaces, and available OEM updates. No active exploitation is shown in the supplied evidence.
Technical view
The issue is improper buffer size validation for a received DSM packet, leading to memory corruption across multiple Snapdragon product families. The CVSS vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The source bundle does not provide CWE mapping, exploit details, or specific fixed firmware versions.
Likely exposure
Exposure is most likely in products using the listed Qualcomm Snapdragon Auto, Compute, Connectivity, Consumer IoT, Industrial IoT, Consumer Electronics Connectivity, or Wearables chipsets. Actual risk depends on OEM firmware, enabled interfaces, and whether the vulnerable Qualcomm component is reachable in the deployed product.
Exploitation context
The provided sources do not show CISA KEV listing or other evidence of active exploitation. The CVSS vector indicates remotely reachable, low-complexity, unauthenticated conditions, but no public exploit status or weaponized details are provided in the source bundle.
Researcher notes
The affected product list is broad and partially truncated in the bundle, so validation should rely on Qualcomm's bulletin and OEM-specific advisories. Avoid assuming every Snapdragon-based device is exploitable; confirm chipset, firmware lineage, interface exposure, and patch availability.
Mitigation direction
- Inventory devices and products using listed Qualcomm Snapdragon chipsets.
- Review Qualcomm's April 2022 security bulletin for vendor guidance.
- Request OEM firmware status for affected embedded and connected products.
- Apply vendor-approved firmware or software updates when available.
- Limit network exposure for affected devices where operationally feasible.
Validation and detection
- Map hardware BOMs to the affected Qualcomm chipset list.
- Check firmware versions against Qualcomm and OEM advisories.
- Confirm whether DSM packet handling is exposed in deployed configurations.
- Track remediation evidence from suppliers, not only internal asset records.
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-2021-30341 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.