CVE-2018-5820 — In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, in the function wma_tbttoffset_update_event_handler(), a parameter received from firmware is used to allocate memory for a local buffer and is not properly validated

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HIGH

In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, in the function wma_tbttoffset_update_event_handler(), a parameter received from firmware is used to allocate memory for a local buffer and is not properly validated

Published Apr 3, 2018

7.3

HIGH

CVSS 3.0

EPSS 0.41%

Description

In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, in the function wma_tbttoffset_update_event_handler(), a parameter received from firmware is used to allocate memory for a local buffer and is not properly validated. This can potentially result in an integer overflow subsequently leading to a heap overwrite.

Affected products

Vendor Qualcomm, Inc. Product Android for MSM, Firefox OS for MSM, QRD Android Default
n/a
- Version
  All Android releases from CAF using the Linux kernel
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Qualcomm, Inc.

Android for MSM, Firefox OS for MSM, QRD Android

n/a

Version	Status	Constraints
All Android releases from CAF using the Linux kernel	affected	-

Remediation

No remediation recorded yet.

Metrics

0.41% 0.00413

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00413

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.41% (0.00413)	33.16th	v5 (v2026.06.15)
Sep 20, 2026	0.41% (0.00413)	35.26th	v5 (v2026.06.15)
Jul 20, 2024	0.07% (0.00074)	32.38th	v3 (v2023.03.01)
May 31, 2024	0.07% (0.00074)	31.73th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00073)	29.71th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.17% (0.00171)	1.23th	v5 (v2026.06.15)
Apr 14, 2021	0.17% (0.00171)	0.00th	v1

Weaknesses (1)

CWE-190

Integer Overflow

References (1)

https://source.android.com/security/bulletin/pixel/2018-04-01
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
https://source.android.com/security/bulletin/pixel/2018-04-01		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner qualcomm

Published Apr 3, 2018

Updated Sep 16, 2024

Reserved Jan 19, 2018

Link CVE-2018-5820

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-5820

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-5820