How severe is CVE-2017-2877?

CVE-2017-2877 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-2017-2877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-2877?

CVE-2017-2877 affects Foscam C1 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-2877?

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-2017-2877 published?

CVE-2017-2877 was published on 2018-09-19 and last updated on 2026-06-17.

CVE-2017-2877

CVE-2017-2877 is a critical-severity vulnerability in Foscam C1 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-755.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Foscam C1 Firmware
Published: 2018-09-19
Last modified: 2026-06-17

Description

A missing error check exists in the Multi-Camera interface used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.43. A specially crafted request on port 10001 could allow an attacker to reset the user accounts to factory defaults, without authentication.

Frequently asked questions

What is CVE-2017-2877?: A missing error check exists in the Multi-Camera interface used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.43. A specially crafted request on port 10001 could allow an attacker to reset the user accounts to factory defaults, without authentication.
How severe is CVE-2017-2877?: CVE-2017-2877 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-2017-2877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-2877?: CVE-2017-2877 affects Foscam C1 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-2877?: 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-2017-2877 published?: CVE-2017-2877 was published on 2018-09-19 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2017-0384

Affected products (1)

cpe:2.3:o:foscam:c1_firmware:2.52.2.43:*:*:*:*:*:*:*

More vulnerabilities in Foscam C1 Firmware

CVE-2017-2875 — Critical (CVSS 9.1): An exploitable buffer overflow vulnerability exists in the Multi-Camera interface used by the Foscam C1 Indoor HD…
CVE-2017-2871 — High (CVSS 8.8): Insufficient security checks exist in the recovery procedure used by the Foscam C1 Indoor HD Camera running application…
CVE-2017-2855 — High (CVSS 8.1): An exploitable buffer overflow vulnerability exists in the DDNS client used by the Foscam C1 Indoor HD Camera running…
CVE-2017-2857 — High (CVSS 8.1): An exploitable buffer overflow vulnerability exists in the DDNS client used by the Foscam C1 Indoor HD Camera running…
CVE-2017-2856 — High (CVSS 8.1): An exploitable buffer overflow vulnerability exists in the DDNS client used by the Foscam C1 Indoor HD Camera running…
CVE-2017-2854 — High (CVSS 8.1): An exploitable buffer overflow vulnerability exists in the DDNS client used by the Foscam C1 Indoor HD Camera running…

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