How severe is CVE-2018-5855?

CVE-2018-5855 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-5855 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5855?

CVE-2018-5855 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5855?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-5855 published?

CVE-2018-5855 was published on 2018-07-06 and last updated on 2026-06-17.

CVE-2018-5855

CVE-2018-5855 is a critical-severity vulnerability in Google Android with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Google Android
Published: 2018-07-06
Last modified: 2026-06-17

Description

While padding or shrinking a nested wmi packet in 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, a buffer over-read can potentially occur.

Frequently asked questions

What is CVE-2018-5855?: While padding or shrinking a nested wmi packet in 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, a buffer over-read can potentially occur.
How severe is CVE-2018-5855?: CVE-2018-5855 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-5855 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5855?: CVE-2018-5855 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5855?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-5855 published?: CVE-2018-5855 was published on 2018-07-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

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