JerryScript 2.2.0 js-parser-statm.c:733 parser_parse_function_statement assertion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in JerryScript 2.2.0. It has been rated as critical. This issue affects the function parser_parse_function_statement of the file js-parser-statm.c:733. Using CWE to declare the problem leads to CWE-617. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

There is an Assertion 'context_p->next_scanner_info_p->type == SCANNER_TYPE_FUNCTION' failed at js-parser-statm.c:733 in parser_parse_function_statement in JerryScript 2.2.0.

The weakness was shared 06/11/2021. The advisory is shared at The identification of this vulnerability is CVE-2020-23310 since 08/13/2020. The attack can only be done within the local network. The successful exploitation needs a simple authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/13/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.



CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Unknown
CWE: CWE-617
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒


08/13/2020 CVE assigned
06/11/2021 +302 days Advisory disclosed
06/11/2021 +0 days VulDB entry created
06/13/2021 +2 days VulDB last update


Status: Confirmed
Confirmation: 🔒

CVE: CVE-2020-23310 (🔒)


Created: 06/11/2021 01:44 PM
Updated: 06/13/2021 02:30 PM
Changes: (3) source_cve_assigned source_cve_nvd_summary advisory_confirm_url
Complete: 🔍


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