PatchTheCVECVE-2017-18124: During secure boot, addition is performed on uint8 ptrs which led to overflow issue in Small Cell SoC, Snapdra
CVE-2017-18124 is a high-severity flaw (CVSS 7.8) affecting fsm9055 firmware, ipq4019 firmware, mdm9206 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
During secure boot, addition is performed on uint8 ptrs which led to overflow issue in Small Cell SoC, Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in version FSM9055, IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, MSM8996AU, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, SDA660,
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 88%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2018-10-26 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-18124?
fsm9055 firmware: mitigate or apply the listed mitigation; ipq4019 firmware: mitigate or apply the listed mitigation; mdm9206 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2017-18124 being exploited?
CVE-2017-18124 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-18124 affect?
CVE-2017-18124 affects fsm9055 firmware, ipq4019 firmware, mdm9206 firmware. Severity is high (CVSS 7.8). During secure boot, addition is performed on uint8 ptrs which led to overflow issue in Small Cell SoC, Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in version FSM9055, IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9
How urgent is CVE-2017-18124?
Priority 30/100. High severity
Software pages
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