How severe is CVE-2018-14853?

CVE-2018-14853 has a CVSS 3.x base score of 4.3, 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 none, integrity none, and availability low.

Is CVE-2018-14853 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-2018-14853?

CVE-2018-14853 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14853?

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

When was CVE-2018-14853 published?

CVE-2018-14853 was published on 2018-12-17 and last updated on 2026-06-17.

CVE-2018-14853

CVE-2018-14853 is a medium-severity vulnerability in Samsung Galaxy S6 Firmware with a CVSS 3.x base score of 4.3. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 3.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Samsung Galaxy S6 Firmware
Published: 2018-12-17
Last modified: 2026-06-17

Description

A NULL pointer dereference in dhd_prot_txdata_write_flush in drivers/net/wireless/bcmdhd4358/dhd_msgbuf.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allows an attacker (who has obtained code execution on the Wi-Fi chip) to cause the device to reboot. The Samsung ID is SVE-2018-11783.

Frequently asked questions

What is CVE-2018-14853?: A NULL pointer dereference in dhd_prot_txdata_write_flush in drivers/net/wireless/bcmdhd4358/dhd_msgbuf.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allows an attacker (who has obtained code execution on the Wi-Fi chip) to cause the device to reboot. The Samsung ID is SVE-2018-11783.
How severe is CVE-2018-14853?: CVE-2018-14853 has a CVSS 3.x base score of 4.3, 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 none, integrity none, and availability low.
Is CVE-2018-14853 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-2018-14853?: CVE-2018-14853 affects Samsung Galaxy S6 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-14853 published?: CVE-2018-14853 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:*:*:*:*:*:*:*

More vulnerabilities in Samsung Galaxy S6 Firmware

CVE-2016-2566 — Critical (CVSS 9.8): Samsung SecEmailSync on SM-G920F build G920FXXU2COH2 (Galaxy S6) devices has SQL injection, aka SVE-2015-5081.
CVE-2018-14745 — High (CVSS 8.8): Buffer overflow in prot_get_ring_space in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7…
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-2018-14856 — 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-2018-14855 — 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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