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CVE-2019-5102

20
FAUCET Score

CVE-2019-5102 is an information leak vulnerability in the ustream-ssl library of OpenWrt versions 18.06.4 and 15.05.1. The vulnerability arises because the system checks SSL certificates but fails to take action when they are invalid, allowing an attacker to intercept communications. This medium-severity flaw (CVSS 5.9) has a high confidentiality impact, as an attacker can perform a man-in-the-middle attack to steal data from the first client request. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
15.05.1CPE matchmatch criteria
cpe:2.3:o:openwrt:openwrt:15.05.1:*:*:*:*:*:*:*
18.06.4CPE matchmatch criteria
cpe:2.3:o:openwrt:openwrt:18.06.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.0MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.78%
Probability of exploitation in next 30 days
EPSS Percentile
52.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0078 is in the 11th percentile among its peer group of 19,958 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

talosintelligence.com / vulnerability_reports/TALOS-2019-0893
ExploitThird Party Advisory