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CVE-2018-18340

27
FAUCET Score

CVE-2018-18340 describes a heap corruption vulnerability in Google Chrome versions prior to 71.0.3578.80, stemming from an incorrect object lifecycle in the MediaRecorder component. This flaw, affecting Google Chrome, Debian, and Red Hat distributions, could be exploited by a remote attacker through a specially crafted HTML page. With a CVSS score of 8.8 (HIGH), successful exploitation could lead to high impacts on confidentiality, integrity, and availability, requiring user interaction but with low attack complexity. While the vulnerability has garnered some community discussion and media coverage, there is currently no evidence of active exploitation, nor are public exploit modules like Metasploit or Nuclei available.

Impacted Technologies

VendorProductVersion(s)CPE
< 71.0.3578.80CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux_server:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux_workstation:6.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 68th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:71.0.3578.80-1.el6_10
View patch

Vendor Advisories (1)

redhatCVE-2018-18340Important

chromium-browser: Use after free in MediaRecorder

Dec 4, 2018

References

access.redhat.com / errata/RHSA-2018:3803
chromereleases.googleblog.com / 2018/12/stable-channel-update-for-desktop.html
crbug.com / 896736
security.gentoo.org / glsa/201908-18
debian.org / security/2018/dsa-4352
securityfocus.com / bid/106084