What’s Vulnerable › Vulnerabilities

CVE-2020-23257

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-04 · updated 2026-06-17
• Weakness: CWE-120

Description

Buffer Overflow vulnerability found in Espruino 2v05.41 allows an attacker to cause a denial of service via the function jsvGarbageCollectMarkUsed in file src/jsvar.c.

Affected products

• Espruino: 2.05.41

References

• http://www.espruino.com/
• https://github.com/espruino/Espruino/issues/1820
• http://www.espruino.com/
• https://github.com/espruino/Espruino/issues/1820

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