How severe is CVE-2018-14856?

CVE-2018-14856 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-2018-14856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14856?

CVE-2018-14856 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14856?

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

When was CVE-2018-14856 published?

CVE-2018-14856 was published on 2018-12-17 and last updated on 2026-06-17.

CVE-2018-14856

CVE-2018-14856 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% (57th 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_create_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 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-2018-14856?: Buffer overflow in dhd_bus_flow_ring_create_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 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-2018-14856?: CVE-2018-14856 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-2018-14856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14856?: CVE-2018-14856 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-14856 published?: CVE-2018-14856 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-2016-4031 — Medium (CVSS 6.8): Samsung SM-G920F build G920FXXU2COH2 (Galaxy S6), SM-N9005 build N9005XXUGBOK6 (Galaxy Note 3), GT-I9192 build…
CVE-2016-4030 — Medium (CVSS 6.8): Samsung SM-G920F build G920FXXU2COH2 (Galaxy S6), SM-N9005 build N9005XXUGBOK6 (Galaxy Note 3), GT-I9192 build…
CVE-2018-14855 — Medium (CVSS 6.3): Buffer overflow in dhd_bus_flow_ring_flush_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358…
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