CVE-2023-49552

HIGH
Published Jan 2, 2024 Modified Apr 17, 2025 CWE-125 CWE-787

Description

An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-125 Out-of-bounds Read
CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
cesanta mjs

References

Frequently Asked Questions

What is CVE-2023-49552? +
An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2023-49552? +
CVE-2023-49552 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-49552? +
CVE-2023-49552 affects products from cesanta, specifically: mjs. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-49552? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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