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CVE-2026-4742

16
FAUCET Score

CVE-2026-4742 identifies an HTTP Request/Response Smuggling vulnerability (CWE-444) in visualfc liteide, affecting versions prior to x38.4. This vulnerability carries a low CVSS 4.0 score of 2.9, indicating a network attack vector with high attack complexity and low potential impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code availability, or significant community discussion or media coverage, with a very low EPSS score suggesting a low probability of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
VisualfcLiteide
>= 0, < x38.4CNA affecteddefault affected

CVSS Data

CVSS version used by this source: 4.0

2.9LOW

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:D/RE:L/U:Green

Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 5th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

github.com / visualfc/liteide/pull/1325