How severe is CVE-2023-37378?

CVE-2023-37378 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-37378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37378?

CVE-2023-37378 affects Nullsoft Nullsoft Scriptable Install System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37378?

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

When was CVE-2023-37378 published?

CVE-2023-37378 was published on 2023-07-03 and last updated on 2026-06-17.

CVE-2023-37378

CVE-2023-37378 is a medium-severity vulnerability in Nullsoft Nullsoft Scriptable Install System with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nullsoft Nullsoft Scriptable Install System
Published: 2023-07-03
Last modified: 2026-06-17

Description

Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles access control for an uninstaller directory.

Frequently asked questions

What is CVE-2023-37378?: Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles access control for an uninstaller directory.
How severe is CVE-2023-37378?: CVE-2023-37378 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-37378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37378?: CVE-2023-37378 affects Nullsoft Nullsoft Scriptable Install System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-37378 published?: CVE-2023-37378 was published on 2023-07-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nullsoft:nullsoft_scriptable_install_system:*:*:*:*:*:*:*:*

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