CVE-2017-18302

In Snapdragon (Automobile ,Mobile) in version MSM8996AU, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 650/52, SD 820, SD 820A, SD 835, SDA660, SDM429, SDM439, SDM630, SDM632, SDM636, SDM660, Snapdragon_High_Med_2016, a crafted HLOS client can modify the structure in memory passed to a QSEE application between the time of check and the time of use, resulting in arbitrary writes to TZ kernel memory regions.

Published: 2018-09-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-18302 is rated Low Risk (21.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.17%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-18302

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.17% +0.12%
2 2025-03-30 0.07% 0.05% -0.02%
3 2025-03-29 — 0.07% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-18302

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.0 MEDIUM
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.0 3.6 [email protected]
4.7 2.0 MEDIUM
AV:L/AC:M/Au:N/C:N/I:C/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 6.9 [email protected]

Weakness enumeration for CVE-2017-18302

Affected software / configurations for CVE-2017-18302

Vendor Product Version Raw CPE
qualcomm msm8996au_firmware — cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
qualcomm sd425_firmware — cpe:2.3:o:qualcomm:sd425_firmware:-:*:*:*:*:*:*:*
qualcomm sd427_firmware — cpe:2.3:o:qualcomm:sd427_firmware:-:*:*:*:*:*:*:*
qualcomm sd430_firmware — cpe:2.3:o:qualcomm:sd430_firmware:-:*:*:*:*:*:*:*
qualcomm sd435_firmware — cpe:2.3:o:qualcomm:sd435_firmware:-:*:*:*:*:*:*:*
qualcomm sd450_firmware — cpe:2.3:o:qualcomm:sd450_firmware:-:*:*:*:*:*:*:*
qualcomm sd625_firmware — cpe:2.3:o:qualcomm:sd625_firmware:-:*:*:*:*:*:*:*
qualcomm sd650_firmware — cpe:2.3:o:qualcomm:sd650_firmware:-:*:*:*:*:*:*:*
qualcomm sd652_firmware — cpe:2.3:o:qualcomm:sd652_firmware:-:*:*:*:*:*:*:*
qualcomm sd820_firmware — cpe:2.3:o:qualcomm:sd820_firmware:-:*:*:*:*:*:*:*
qualcomm sd820a_firmware — cpe:2.3:o:qualcomm:sd820a_firmware:-:*:*:*:*:*:*:*
qualcomm sd835_firmware — cpe:2.3:o:qualcomm:sd835_firmware:-:*:*:*:*:*:*:*
qualcomm sda660_firmware — cpe:2.3:o:qualcomm:sda660_firmware:-:*:*:*:*:*:*:*
qualcomm sdm429_firmware — cpe:2.3:o:qualcomm:sdm429_firmware:-:*:*:*:*:*:*:*
qualcomm sdm439_firmware — cpe:2.3:o:qualcomm:sdm439_firmware:-:*:*:*:*:*:*:*
qualcomm sdm630_firmware — cpe:2.3:o:qualcomm:sdm630_firmware:-:*:*:*:*:*:*:*
qualcomm sdm632_firmware — cpe:2.3:o:qualcomm:sdm632_firmware:-:*:*:*:*:*:*:*
qualcomm sdm636_firmware — cpe:2.3:o:qualcomm:sdm636_firmware:-:*:*:*:*:*:*:*
qualcomm sdm660_firmware — cpe:2.3:o:qualcomm:sdm660_firmware:-:*:*:*:*:*:*:*

References for CVE-2017-18302

cvelogic Threat Intelligence