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Vulnerability record · CVE-2015-7392 · published 5 October 2015

CVE-2015-7392: Freeswitch memory buffer overflow vulnerability

Freeswitch · Freeswitch

Heap-based buffer overflow in the parse_string function in libs/esl/src/esl_json.c in FreeSWITCH before 1.4.23 and 1.6.x before 1.6.2 allows remote attackers to execute arbitrary code via a trailing \u in a json string to cJSON_Parse.

7.5 CVSS 2.0 High EPSS 4.7% · top 8.6% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the parse_string function in libs/esl/src/esl_json.c in FreeSWITCH before 1.4.23 and 1.6.x before 1.6.2 allows remote attackers to execute arbitrary code via a trailing \u in a json string to cJSON_Parse.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/133781/freeswitch-Heap-Overflow.html Exploit
http://www.securityfocus.com/archive/1/536569/100/0/threaded
https://freeswitch.org/stash/projects/FS/repos/freeswitch/commits/cf8925
http://packetstormsecurity.com/files/133781/freeswitch-Heap-Overflow.html Exploit
http://www.securityfocus.com/archive/1/536569/100/0/threaded
https://freeswitch.org/stash/projects/FS/repos/freeswitch/commits/cf8925

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-7392), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.