What is CVE-2018-5873?

CVE-2018-5873 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2018-07-06.

How severe is CVE-2018-5873?

High severity. CVSS v3 base score is 7.0 out of 10.

Is CVE-2018-5873 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Google Android

CVE-2018-5873

An issue was discovered in the __ns_get_path function in fs/nsfs.c in the Linux kernel before 4.11. Due to a race condition when accessing files, a Use After Free condition can occur. This also affects all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-07-05.

Vulnerability class: Race Condition

Published 2018-07-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (40.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Android
Linux Kernel
Qualcomm, Inc. Android For Msm, Firefox OS Qrd — versions All Android releases from CAF using the Linux kernel

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.codeaurora.org/security-bulletin/2018/07/02/july-2018-code-aurora-security-… (Third Party Advisory)
source.codeaurora.org/quic/la/kernel/msm-4.9/commit/ (Third Party Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
source.android.com/security/bulletin/2018-07-01 (Vendor Advisory)
github.com/torvalds/linux/commit/073c516ff73557a8f7315066856c04b50383ac34 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5873?: CVE-2018-5873 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2018-07-06.
How severe is CVE-2018-5873?: High severity. CVSS v3 base score is 7.0 out of 10.
Is CVE-2018-5873 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.