How severe is CVE-2024-40754?

CVE-2024-40754 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-40754 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-40754?

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

Does CVE-2024-40754 have an EU (EUVD) identifier?

Yes. CVE-2024-40754 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38611.

When was CVE-2024-40754 published?

CVE-2024-40754 was published on 2024-09-10 and last updated on 2026-06-17.

CVE-2024-40754

CVE-2024-40754 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-122.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.9
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38611
Weakness: CWE-122
Published: 2024-09-10
Last modified: 2026-06-17

Description

Heap-based Buffer Overflow vulnerability in Samsung Open Source Escargot JavaScript engine allows Overflow Buffers.This issue affects Escargot: 4.0.0.

Frequently asked questions

What is CVE-2024-40754?: Heap-based Buffer Overflow vulnerability in Samsung Open Source Escargot JavaScript engine allows Overflow Buffers.This issue affects Escargot: 4.0.0.
How severe is CVE-2024-40754?: CVE-2024-40754 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-40754 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-40754?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-40754 have an EU (EUVD) identifier?: Yes. CVE-2024-40754 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38611.
When was CVE-2024-40754 published?: CVE-2024-40754 was published on 2024-09-10 and last updated on 2026-06-17.

References

https://github.com/Samsung/escargot/pull/1369

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