Security readout for executives and security teams
Plain-English summary
CVE-2018-11952 is a Qualcomm TrustZone authentication flaw where some Snapdragon platforms may boot an image older than the device fuse version. In business terms, this weakens firmware downgrade protections and could let a local attacker reach high-impact confidentiality, integrity, and availability outcomes on affected device families.
Executive priority
Treat as high priority for affected embedded, mobile, and modem fleets, especially long-lived devices without current OEM firmware support. The issue is local rather than remote, but the potential TrustZone impact is severe.
Technical view
The CVE describes CWE-287 improper authentication in TrustZone. The specific condition is booting an image with a version lower than the fuse version. CVSS 3.1 is 7.8 with local attack vector, low complexity, no privileges, no user interaction, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to products built on the listed Qualcomm Snapdragon and MDM platforms. Actual exposure depends on the OEM device, firmware lineage, and whether Qualcomm’s May 2018 security guidance was integrated. The source bundle does not identify specific phone, IoT, or modem products.
Exploitation context
No provided source and no KEV flag indicates active exploitation. The CVSS vector is local, so this should be prioritized for managed fleets and embedded devices where attackers could influence firmware images or downgrade paths.
Researcher notes
The public record is sparse. It names affected Qualcomm platforms and the lower-than-fuse-version boot condition, but not OEM product mappings, patch mechanics, or public exploit details. Avoid assuming exposure without chipset and firmware confirmation.
Mitigation direction
- Check Qualcomm and OEM guidance for CVE-2018-11952 coverage.
- Apply OEM firmware updates incorporating Qualcomm May 2018 security fixes.
- Block use of outdated or untrusted firmware images in operational processes.
- Prioritize devices using the listed Snapdragon and MDM platforms.
Validation and detection
- Inventory devices by chipset, firmware version, and OEM security bulletin level.
- Confirm OEM advisories explicitly address CVE-2018-11952 or the May 2018 Qualcomm bulletin.
- Verify firmware management processes prevent unauthorized downgrade images.
- Track exceptions where OEM patch status cannot be confirmed.
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.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-11952 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.