CVE-2018-6830

What it is

Directory traversal vulnerability in Foscam Cameras C1 Lite V3, and C1 V3 with firmware 2.82.2.33 and earlier, FI9800P V3, FI9803P V4, FI9851P V3, and FI9853EP V2 2.84.2.33 and earlier, FI9816P V3, FI9821EP V2, FI9821P V3, FI9826P V3, and FI9831P V3 2.81.2.33 and earlier, C1, C1 V2, C1 Lite, and C1 Lite V2 2.52.2.47 and earlier, FI9800P, FI9800P V2, FI9803P V2, FI9803P V3, and FI9851P V2 2.54.2.47 and earlier, FI9815P, FI9815P V2, FI9816P, and FI9816P V2, 2.51.2.47 and earlier, R2 and R4 2.71.1.59 and earlier, C2 and FI9961EP 2.72.1.59 and earlier, FI9900EP, FI9900P, and FI9901EP 2.74.1.59 and earlier, FI9928P 2.74.1.58 and earlier, FI9803EP and FI9853EP 2.22.2.31 and earlier, FI9803P and FI9851P 2.24.2.31 and earlier, FI9821P V2, FI9826P V2, FI9831P V2, and FI9821EP 2.21.2.31 and earlier, FI9821W V2, FI9831W, FI9826W, FI9821P, FI9831P, and FI9826P 2.11.1.120 and earlier, FI9818W V2 2.13.2.120 and earlier, FI9805W, FI9804W, FI9804P, FI9805E, and FI9805P 2.14.1.120 and earlier, FI9828P, and FI9828W 2.13.1.120 and earlier, and FI9828P V2 2.11.1.133 and earlier allows remote attackers to delete arbitrary files via a .. (dot dot) in the URI path component.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data tampering.

Exploit odds

2.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-07-09 17:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:02 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.6% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-07-09 17:29 UTC

Last modified

2026-06-17 02:02 UTC

Exploit probability

2.6% · EPSS, next 30 days

Weakness

CWE-22 · Path traversal

Record status

Modified

Affected

• Foscam c1 Lite Firmware ≤ 2.82.2.33
• Foscam c1 Firmware ≤ 2.82.2.33
• Foscam fi9800p Firmware ≤ 2.81.2.33
• Foscam fi9821ep Firmware ≤ 2.81.2.33
• Foscam fi9821p Firmware ≤ 2.81.2.33
• Foscam fi9826p Firmware ≤ 2.81.2.33
• Foscam fi9831p Firmware ≤ 2.81.2.33
• Foscam c1 Firmware ≤ 2.52.2.47

Attack profile CVSS 3.0 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2018-6830.md and follow it. Check whether this project is affected by CVE-2018-6830. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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