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CVE-2022-28743

22
FAUCET Score

CVE-2022-28743 is a Time-of-check Time-of-use (TOCTOU) race condition vulnerability affecting Foscam R2C IP cameras with specific firmware versions. An authenticated attacker with administrator privileges can exploit this flaw by uploading a malicious firmware patch, leading to arbitrary remote code execution with root permissions. This vulnerability carries a CVSS score of 6.6 (Medium) due to its high impact on confidentiality, integrity, and availability, despite requiring high privileges and having high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.91.2.66CPE matchmatch criteria
cpe:2.3:o:foscam:r2c_application_firmware:*:*:*:*:*:*:*:*
<= 1.13.1.6CPE matchmatch criteria
cpe:2.3:o:foscam:r2c_system_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
62.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 77th percentile among its peer group of 687 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

trellix.com / en-us/about/newsroom/stories/threat-labs/keeping-a-critical-eye-on-iot-devices.html
Third Party Advisory