I5 Application Firmware CVE-2018-19076

CRITICAL

Improper Authentication (CWE-287)

2018-11-07 cve@mitre.org

Authentication Bypass I5 Application Firmware I5 System Firmware C2 Application Firmware C2 System Firmware Foscam Opticam

9.8

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 1.9% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered on Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, and Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. An issue was discovered on Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, and Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128. The FTP and RTSP services make it easier for attackers to conduct brute-force authentication attacks, because failed-authentication limits apply only to HTTP (not FTP or RTSP). Affected products include: Opticam I5 Application Firmware, Opticam I5 System Firmware, Foscam C2 Application Firmware, Foscam C2 System Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

An issue was discovered on Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, and Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128. The FTP and RTSP services make it easier for attackers to conduct brute-force authentication attacks, because failed-authentication limits apply only to HTTP (not FTP or RTSP).

Threat Intelligence Overview

EPSS Score

1.9%

Top 23% exploitable

Exploit

POC

Public exploit code exists

Data Quality

2 sources

Confidence: Low

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 1.9%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

71

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +49

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:o:opticam:i5_application_firmware:2.21.1.128:*:*:*:*:*:*:*

cpe:2.3:o:opticam:i5_system_firmware:1.5.2.11:*:*:*:*:*:*:*

cpe:2.3:o:foscam:c2_application_firmware:2.72.1.32:*:*:*:*:*:*:*

cpe:2.3:o:foscam:c2_system_firmware:1.11.1.8:*:*:*:*:*:*:*

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CVE-2018-19082 CRITICAL Act Now POC

An issue was discovered on Foscam Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128.

CVE-2018-19081 CRITICAL Act Now POC

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CVE-2018-19078 CRITICAL Act Now POC

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CVE-2018-19064 CRITICAL Act Now POC

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CVE-2018-19071 HIGH This Week POC

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CVE-2018-19079 HIGH This Week POC

An issue was discovered on Foscam Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128.

CVE-2018-19077 HIGH This Week POC

An issue was discovered on Foscam Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128.

CVE-2018-19074 HIGH This Week POC

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CVE-2018-19066 HIGH This Week POC

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