CVE & CISA-KEV Catalog

CVE-2016-5093

HIGHEPSS 92th pctl
8.6
CVSS v3
NVD

Description

The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.

CWE-125Out-of-bounds Read

How to fix

Remediation Available
libapache2-mod-php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
libapache2-mod-php7.0Ubuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-cgiUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-cliUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-fpmUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php7.0Ubuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-cgiUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-cliUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-fpmUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityHigh

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

Exploit Intelligence

5.49%probability of exploitation in 30 days
92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Exploit1
Release Notes1

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0160High7.5100%KEVFix
CVE-2025-5777High7.5100%KEV + RansomFix
CVE-2021-4034High7.895%KEVFix
CVE-2023-21769High7.592%-Fix
CVE-2023-49285High8.689%-Fix
CVE-2020-8794Critical9.889%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.