CVE-2018-6123

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to...

6.5 MediumFix available

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.88%Up 1.1 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record: CVE-2018-6123
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-416, CWE-787
Updated: 2026-11-02

CVE List No score

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record: CVE-2018-6123
Updated: 2026-11-02

EUVDEUVD-2018-17886 No score

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record: EUVD-2018-17886
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vqr7-wg8m-jfhm 6.5

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to...

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record: GHSA-vqr7-wg8m-jfhm
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVRHSA-2018:1815 8.8

Red Hat Security Advisory: chromium-browser security update

Record: RHSA-2018:1815
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-6123 6.5

A use after free in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Record: UBUNTU-CVE-2018-6123
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVMGASA-2018-0268 No score

Updated chromium-browser-stable packages fix security vulnerabilities

Chromium-browser 67.0.3396.62 fixes security issues:

Multiple flaws were found in the way Chromium 64.0.3282.140 processes various types of web content, where loading a web page containing malicious content could cause Chromium to crash, execute arbitrary code, or disclose sensitive information. (CVE-2017-11215, CVE-2017-11225, CVE-2018-6056, CVE-2018-6057, CVE-2018-6060, CVE-2018-6061, CVE-2018-6062, CVE-2018-6063, CVE-2018-6064, CVE-2018-6065, CVE-2018-6066, CVE-2018-6067, CVE-2018-6068, CVE-2018-6069, CVE-2018-6070, CVE-2018-6071, CVE-2018-6072, CVE-2018-6073, CVE-2018-6074, CVE-2018-6075, CVE-2018-6076, CVE-2018-6077, CVE-2018-6078, CVE-2018-6079, CVE-2018-6080, CVE-2018-6081, CVE-2018-6082, CVE-2018-6083, CVE-2018-6084, CVE-2018-6085, CVE-2018-6086, CVE-2018-6087, CVE-2018-6088, CVE-2018-6089, CVE-2018-6090, CVE-2018-6091, CVE-2018-6092, CVE-2018-6093, CVE-2018-6094, CVE-2018-6095, CVE-2018-6096, CVE-2018-6097, CVE-2018-6098, CVE-2018-6099, CVE-2018-6100, CVE-2018-6101, CVE-2018-6102, CVE-2018-6103, CVE-2018-6104, CVE-2018-6105, CVE-2018-6106, CVE-2018-6107, CVE-2018-6108, CVE-2018-6109, CVE-2018-6110, CVE-2018-6111, CVE-2018-6112, CVE-2018-6113, CVE-2018-6114, CVE-2018-6115, CVE-2018-6116, CVE-2018-6117, CVE-2018-6118, CVE-2018-6120, CVE-2018-6121, CVE-2018-6122, CVE-2018-6123, CVE-2018-6124, CVE-2018-6126, CVE-2018-6127, CVE-2018-6128, CVE-2018-6129, CVE-2018-6130, CVE-2018-6131, CVE-2018-6132, CVE-2018-6133, CVE-2018-6134, CVE-2018-6135, CVE-2018-6136, CVE-2018-6137, CVE-2018-6138, CVE-2018-6139, CVE-2018-6140, CVE-2018-6141, CVE-2018-6142, CVE-2018-6143, CVE-2018-6144, CVE-2018-6145, CVE-2018-6147)

Record: MGASA-2018-0268
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10681-1 No score

chromedriver-93.0.4577.82-1.1 on GA media

These are all security issues fixed in the chromedriver-93.0.4577.82-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10681-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:12948-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`chromium-browser` Debian:9	before 67.0.3396.87-1~deb9u1, plus listed versions 59.0.3071.104-159.0.3071.86-160.0.3112.72-160.0.3112.78-160.0.3112.78-1~deb9u1 Show 36 moreShow less 61.0.3163.100-161.0.3163.100-1~deb9u161.0.3163.100-262.0.3202.75-162.0.3202.75-1~deb9u162.0.3202.89-162.0.3202.89-1~deb9u163.0.3239.30-163.0.3239.40-163.0.3239.84-163.0.3239.84-1~deb9u164.0.3282.119-164.0.3282.119-1~deb9u164.0.3282.119-265.0.3325.146-165.0.3325.146-265.0.3325.146-365.0.3325.146-465.0.3325.73-165.0.3325.74-166.0.3359.117-166.0.3359.117-1~deb9u166.0.3359.139-166.0.3359.181-166.0.3359.22-166.0.3359.22-266.0.3359.22-366.0.3359.26-166.0.3359.26-267.0.3396.48-167.0.3396.56-167.0.3396.57-167.0.3396.62-167.0.3396.62-267.0.3396.79-167.0.3396.79-2	67.0.3396.87-1~deb9u1
`chromium-browser-stable` Mageia:6	before 67.0.3396.62-1.mga6	67.0.3396.62-1.mga6
`chromium-browser` Red Hat:rhel_extras:6	before 0:67.0.3396.62-2.el6_9	0:67.0.3396.62-2.el6_9
`chromium-browser-debuginfo` Red Hat:rhel_extras:6	before 0:67.0.3396.62-2.el6_9	0:67.0.3396.62-2.el6_9
`chromium-browser` Ubuntu:16.04:LTS	before 67.0.3396.99-0ubuntu0.16.04.2, plus listed versions 45.0.2454.101-0ubuntu1.120147.0.2526.73-0ubuntu1.121847.0.2526.106-0ubuntu1.122148.0.2564.82-0ubuntu1.122248.0.2564.116-0ubuntu1.1229 Show 31 moreShow less 49.0.2623.87-0ubuntu1.123249.0.2623.108-0ubuntu1.123350.0.2661.102-0ubuntu0.16.04.1.123751.0.2704.79-0ubuntu0.16.04.1.124252.0.2743.116-0ubuntu0.16.04.1.125053.0.2785.143-0ubuntu0.16.04.1.125453.0.2785.143-0ubuntu0.16.04.1.125755.0.2883.87-0ubuntu0.16.04.126356.0.2924.76-0ubuntu0.16.04.126857.0.2987.98-0ubuntu0.16.04.127658.0.3029.81-0ubuntu0.16.04.127758.0.3029.96-0ubuntu0.16.04.127958.0.3029.110-0ubuntu0.16.04.128159.0.3071.109-0ubuntu0.16.04.128959.0.3071.109-0ubuntu0.16.04.129160.0.3112.78-0ubuntu0.16.04.129360.0.3112.113-0ubuntu0.16.04.129861.0.3163.79-0ubuntu0.16.04.130061.0.3163.100-0ubuntu0.16.04.130662.0.3202.62-0ubuntu0.16.04.130862.0.3202.75-0ubuntu0.16.04.131362.0.3202.89-0ubuntu0.16.04.131562.0.3202.94-0ubuntu0.16.04.131763.0.3239.84-0ubuntu0.16.04.163.0.3239.132-0ubuntu0.16.04.164.0.3282.119-0ubuntu0.16.04.164.0.3282.140-0ubuntu0.16.04.164.0.3282.167-0ubuntu0.16.04.165.0.3325.181-0ubuntu0.16.04.166.0.3359.139-0ubuntu0.16.04.366.0.3359.181-0ubuntu0.16.04.1	67.0.3396.99-0ubuntu0.16.04.2
`oxide-qt` Ubuntu:16.04:LTS	All versions, plus listed versions 1.9.5-0ubuntu11.10.3-0ubuntu0.15.10.11.10.3-0ubuntu0.15.10.21.11.3-0ubuntu31.11.4-0ubuntu1 Show 17 moreShow less 1.11.5-0ubuntu11.12.5-0ubuntu11.12.6-0ubuntu11.12.7-0ubuntu11.13.6-0ubuntu11.14.7-0ubuntu11.14.9-0ubuntu0.16.04.11.15.7-0ubuntu0.16.04.11.15.8-0ubuntu0.16.04.11.16.5-0ubuntu0.16.04.11.17.7-0ubuntu0.16.04.11.17.9-0ubuntu0.16.04.11.18.3-0ubuntu0.16.04.11.18.5-0ubuntu0.16.04.11.19.4-0ubuntu0.16.04.11.20.4-0ubuntu0.16.04.11.21.5-0ubuntu0.16.04.1	None known
`chromium-browser` Ubuntu:18.04:LTS	before 67.0.3396.99-0ubuntu0.18.04.1, plus listed versions 61.0.3163.100-0ubuntu1.137862.0.3202.62-0ubuntu0.17.10.138062.0.3202.89-0ubuntu1.138662.0.3202.94-0ubuntu1.138863.0.3239.84-0ubuntu1 Show 8 moreShow less 63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.1	67.0.3396.99-0ubuntu0.18.04.1
`chromium` openSUSE:Tumbleweed	before 93.0.4577.82-1.1	93.0.4577.82-1.1
`chromium` openSUSE:Tumbleweed	before 113.0.5672.92-1.1	113.0.5672.92-1.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-6123 is a medium vulnerability (CVSS 6.5) in Google Chrome, published June 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.88%, the 79th percentile. Fixed in chromium-browser 67.0.3396.87-1~deb9u1.

References

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