CVE-2014-9654: The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as

Q: How do I fix CVE-2014-9654?

chrome: upgrade to newer than 40.0.2214.85; international components for unicode: upgrade to 55.1. Exact commands for each OS are on this page.

Q: Is CVE-2014-9654 being exploited?

CVE-2014-9654 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-9654 affect?

CVE-2014-9654 affects chrome, international components for unicode. Severity is critical (CVSS 9.8). The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as used in Google Chrome before 40.0.2214.91, calculates certain values without ensuring that they can be represented in a 24-bit fie

Q: How urgent is CVE-2014-9654?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADEUPGRADE

CVE-2014-9654 is a critical-severity flaw (CVSS 9.8) affecting chrome, international components for unicode. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as used in Google Chrome before 40.0.2214.91, calculates certain values without ensuring that they can be represented in a 24-bit field, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted string, a related issue to CVE-2014-7923.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-119
Published	2017-04-24
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: google · icu-project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-04-24 06:59 UTCPublished CVE record published
2026-06-17 00:18 UTCUpdated Record last modified

google chrome UPGRADE

Affected: <= 40.0.2214.85

Fixed in: newer than 40.0.2214.85

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chrome || rpm -q chrome || chrome --version

2. UPGRADE to newer than 40.0.2214.85 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chrome

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chrome

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

icu-project international components for unicode UPGRADE

Affected: < 55.1

Fixed in: 55.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy international-components-for-unicode || rpm -q international-components-for-unicode || international-components-for-unicode --version

2. UPGRADE to 55.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade international-components-for-unicode

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade international-components-for-unicode

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-9654?

chrome: upgrade to newer than 40.0.2214.85; international components for unicode: upgrade to 55.1. Exact commands for each OS are on this page.

Is CVE-2014-9654 being exploited?

CVE-2014-9654 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-9654 affect?

CVE-2014-9654 affects chrome, international components for unicode. Severity is critical (CVSS 9.8). The Regular Expressions package in International Components for Unicode (ICU) for C/C++ before 2014-12-03, as used in Google Chrome before 40.0.2214.91, calculates certain values without ensuring that they can be represented in a 24-bit fie

How urgent is CVE-2014-9654?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Google Chrome vulnerabilities

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CVE-2026-76029 HIGH 8.8 UPGRADE Memory corruption in Network in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to potentially
CVE-2026-76028 HIGH 8.8 UPGRADE Use after free in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to execute arbi
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References

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