CVE-2015-8617

Status: ModifiedCritical (9.8)—Exploit

Severity9.8Critical · CVSS 3.0

Exploitation probability23 %higher than 98% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Format string vulnerability in the zend_throw_or_error function in Zend/zend_execute_API.c in PHP 7.x before 7.0.1 allows remote attackers to execute arbitrary code via format string specifiers in a string that is misused as a class name, leading to incorrect error handling.

CVSS

Base score: 9.8
Version: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 23 %
Percentile among all scored CVEs: 98
Score date: 10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · PHP 7.0.0 - Format String (12/23/2015)

Affected technologies (1)

PHP — PHP

CWEs

CWE-134

References

Show 8 references

Raw JSON (NVD)

Show

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