How severe is CVE-2016-8731?

CVE-2016-8731 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-2016-8731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-8731?

CVE-2016-8731 affects Foscam C1 Webcam Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-8731?

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-2016-8731 published?

CVE-2016-8731 was published on 2017-06-21 and last updated on 2026-06-17.

CVE-2016-8731

CVE-2016-8731 is a critical-severity vulnerability in Foscam C1 Webcam Firmware 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Foscam C1 Webcam Firmware
Published: 2017-06-21
Last modified: 2026-06-17

Description

Hard-coded FTP credentials (r:r) are included in the Foscam C1 running firmware 1.9.1.12. Knowledge of these credentials would allow remote access to any cameras found on the internet that do not have port 50021 blocked by an intermediate device.

Frequently asked questions

What is CVE-2016-8731?: Hard-coded FTP credentials (r:r) are included in the Foscam C1 running firmware 1.9.1.12. Knowledge of these credentials would allow remote access to any cameras found on the internet that do not have port 50021 blocked by an intermediate device.
How severe is CVE-2016-8731?: CVE-2016-8731 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-2016-8731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-8731?: CVE-2016-8731 affects Foscam C1 Webcam Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-8731?: 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-2016-8731 published?: CVE-2016-8731 was published on 2017-06-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:foscam:c1_webcam_firmware:1.9.1.12:*:*:*:*:*:*:*

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