CVE-2017-9250

Name: CVE-2017-9250
Creator: NVD / NIST
Published: 2017-05-28T20:29:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.50%

Last modified Jun 17, 2026

CVE-2017-9250 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function.. EPSS estimates a 2.50% chance of exploitation in the next 30 days.

Description

The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.50%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Jerryscript	Jerryscript	1.0

References

http://www.securitytracker.com/id/1038413Third Party Advisory, VDB Entry
https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79Patch, Third Party Advisory
https://github.com/jerryscript-project/jerryscript/issues/1821Exploit, Third Party Advisory
https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8Third Party Advisory
http://www.securitytracker.com/id/1038413Third Party Advisory, VDB Entry
https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79Patch, Third Party Advisory
https://github.com/jerryscript-project/jerryscript/issues/1821Exploit, Third Party Advisory
https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8Third Party Advisory

Timeline

Published: May 28, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9250?

How severe is CVE-2017-9250?

CVE-2017-9250 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.50% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9250?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9250?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST