SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-4603

The exception::getTraceAsString function in Zend/zend_exceptions.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to execute arbitrary code via an unexpected data type, related to a "type confusion" issue.

CRITICAL 9.8EPSS 10.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 10.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

The exception::getTraceAsString function in Zend/zend_exceptions.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to execute arbitrary code via an unexpected data type, related to a "type confusion" issue.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
10.58% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
php/php · redhat/enterprise linux desktop · redhat/enterprise linux hpc node · redhat/enterprise linux hpc node eus · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · redhat/enterprise linux
Source
secalert@redhat.com
EPSS trend
0%8%15%4 November 2026: 10.58%4 November 20264 November 2026

EPSS 10.6% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.