How severe is CVE-2018-14855?

CVE-2018-14855 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2018-14855 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14855?

CVE-2018-14855 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14855?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-14855 published?

CVE-2018-14855 was published on 2018-12-17 and last updated on 2026-06-17.

CVE-2018-14855

CVE-2018-14855 is a medium-severity vulnerability in Samsung Galaxy S6 Firmware with a CVSS 3.x base score of 6.3. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 5.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Samsung Galaxy S6 Firmware
Published: 2018-12-17
Last modified: 2026-06-17

Description

Buffer overflow in dhd_bus_flow_ring_flush_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 allow an attacker (who has obtained code execution on the Wi-Fi chip) to cause the device driver to perform invalid memory accesses. The Samsung ID is SVE-2018-11785.

Frequently asked questions

What is CVE-2018-14855?: Buffer overflow in dhd_bus_flow_ring_flush_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 allow an attacker (who has obtained code execution on the Wi-Fi chip) to cause the device driver to perform invalid memory accesses. The Samsung ID is SVE-2018-11785.
How severe is CVE-2018-14855?: CVE-2018-14855 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2018-14855 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14855?: CVE-2018-14855 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14855?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-14855 published?: CVE-2018-14855 was published on 2018-12-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:samsung:galaxy_s6_firmware:g920fxxu5eqh7:*:*:*:*:*:*:*

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CVE-2018-14856 — Medium (CVSS 6.3): Buffer overflow in dhd_bus_flow_ring_create_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358…
CVE-2018-14854 — Medium (CVSS 6.3): Buffer overflow in dhd_bus_flow_ring_delete_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358…

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