How severe is CVE-2018-11593?

CVE-2018-11593 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2018-11593 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11593?

CVE-2018-11593 affects Espruino. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11593?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-11593 published?

CVE-2018-11593 was published on 2018-05-31 and last updated on 2026-06-17.

CVE-2018-11593

CVE-2018-11593 is a high-severity vulnerability in Espruino with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Espruino
Published: 2018-05-31
Last modified: 2026-06-17

Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c.

Frequently asked questions

What is CVE-2018-11593?: Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c.
How severe is CVE-2018-11593?: CVE-2018-11593 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2018-11593 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11593?: CVE-2018-11593 affects Espruino. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11593?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-11593 published?: CVE-2018-11593 was published on 2018-05-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:espruino:espruino:*:*:*:*:*:*:*:*

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