How severe is CVE-2024-40618?

CVE-2024-40618 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2024-40618 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-40618?

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-2024-40618 have an EU (EUVD) identifier?

Yes. CVE-2024-40618 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38544.

When was CVE-2024-40618 published?

CVE-2024-40618 was published on 2024-07-11 and last updated on 2026-06-17.

CVE-2024-40618

CVE-2024-40618 is a critical-severity vulnerability with a CVSS 3.x base score of 9.6. 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-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38544
Weakness: CWE-79
Published: 2024-07-11
Last modified: 2026-06-17

Description

Whale browser before 3.26.244.21 allows an attacker to execute malicious JavaScript due to improper sanitization when processing a built-in extension.

Frequently asked questions

What is CVE-2024-40618?: Whale browser before 3.26.244.21 allows an attacker to execute malicious JavaScript due to improper sanitization when processing a built-in extension.
How severe is CVE-2024-40618?: CVE-2024-40618 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2024-40618 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-40618?: 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-2024-40618 have an EU (EUVD) identifier?: Yes. CVE-2024-40618 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38544.
When was CVE-2024-40618 published?: CVE-2024-40618 was published on 2024-07-11 and last updated on 2026-06-17.

References

https://cve.naver.com/detail/cve-2024-40618.html

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