CVE & CISA-KEV Catalog

CVE-2015-8873

HIGHEPSS 89th pctl
7.5
CVSS v3
NVD

Description

Stack consumption vulnerability in Zend/zend_exceptions.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to cause a denial of service (segmentation fault) via recursive method calls.

CWE-20Improper Input Validation

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

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.88%probability of exploitation in 30 days
89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Exploit1
Vendor Advisory1
Other references1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
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Markdown

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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.