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CVE-2019-5754

21
FAUCET Score

CVE-2019-5754 is an implementation error in the QUIC networking protocol within Google Chrome versions prior to 72.0.3626.81, also affecting Debian, Fedora, and Red Hat distributions. This medium-severity vulnerability (CVSS 6.5) allows an attacker to obtain cleartext of transport-encrypted data if they can operate or induce the use of a malicious network proxy. While the attack complexity is low and requires user interaction (UI:R), the impact is high confidentiality compromise (C:H). There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, indicating low current threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 72.0.3626.81CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
29CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 47th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:72.0.3626.81-1.el6_10
View patch

Vendor Advisories (1)

redhatCVE-2019-5754Critical

chromium-browser: Inappropriate implementation in QUIC Networking

Jan 29, 2019

References

access.redhat.com / errata/RHSA-2019:0309
chromereleases.googleblog.com / 2019/01/stable-channel-update-for-desktop.html
crbug.com / 914497
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JVFHYCJGMZQUKYSIE2BXE4NLEGFGUXU5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ZQOP53LXXPRGD4N5OBKGQTSMFXT32LF6
debian.org / security/2019/dsa-4395
securityfocus.com / bid/106767