Vulnerability Details : CVE-2017-12933

The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
Published 2017-08-18 03:29:00
Updated 2019-10-03 00:03:26
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2017-12933

Top countries where our scanners detected CVE-2017-12933
Top open port discovered on systems with this issue 80
IPs affected by CVE-2017-12933 229,788
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2017-12933!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2017-12933

Probability of exploitation activity in the next 30 days: 1.06%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 82 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2017-12933

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
 NIST
9.8
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

CWE ids for CVE-2017-12933

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-12933

Products affected by CVE-2017-12933

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