CVE-2018-11846

The use of a non-time-constant memory comparison operation can lead to timing/side channel attacks in Snapdragon Mobile in version SD 210/SD 212/SD 205, SD 845, SD 850

Published: 2018-10-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-11846 is rated Low Risk (21/100): 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-2018-11846

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 0.10% 0.17% +0.07%
2 2025-12-29 0.04% 0.10% +0.05%
3 2025-03-30 — 0.04% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11846

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:H/I:N/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
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:C/I:N/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:C)
Complete confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 6.9 [email protected]

Weakness enumeration for CVE-2018-11846

Affected software / configurations for CVE-2018-11846

Vendor Product Version Raw CPE
qualcomm sd_210_firmware — cpe:2.3:o:qualcomm:sd_210_firmware:-:*:*:*:*:*:*:*
qualcomm sd_212_firmware — cpe:2.3:o:qualcomm:sd_212_firmware:-:*:*:*:*:*:*:*
qualcomm sd_205_firmware — cpe:2.3:o:qualcomm:sd_205_firmware:-:*:*:*:*:*:*:*
qualcomm sd_845_firmware — cpe:2.3:o:qualcomm:sd_845_firmware:-:*:*:*:*:*:*:*
qualcomm sd_850_firmware — cpe:2.3:o:qualcomm:sd_850_firmware:-:*:*:*:*:*:*:*

References for CVE-2018-11846

cvelogic Threat Intelligence