How severe is CVE-2018-11596?

CVE-2018-11596 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-11596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11596?

CVE-2018-11596 affects Espruino. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11596?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-11596 published?

CVE-2018-11596 was published on 2018-05-31 and last updated on 2026-06-17.

CVE-2018-11596

CVE-2018-11596 is a medium-severity vulnerability in Espruino with a CVSS 3.x base score of 5.5. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
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) with a user crafted input file via a Buffer Overflow during syntax parsing because a check for '\0' is made for the wrong array element in jsvar.c.

Frequently asked questions

What is CVE-2018-11596?: Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing because a check for '\0' is made for the wrong array element in jsvar.c.
How severe is CVE-2018-11596?: CVE-2018-11596 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-11596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11596?: CVE-2018-11596 affects Espruino. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11596?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-11596 published?: CVE-2018-11596 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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