How severe is CVE-2021-43397?

CVE-2021-43397 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43397?

CVE-2021-43397 affects Liquidfiles. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43397?

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-2021-43397 published?

CVE-2021-43397 was published on 2021-11-11 and last updated on 2026-06-17.

CVE-2021-43397

CVE-2021-43397 is a high-severity vulnerability in Liquidfiles with a CVSS 3.x base score of 8.8. 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-522.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Liquidfiles
Published: 2021-11-11
Last modified: 2026-06-17

Description

LiquidFiles before 3.6.3 allows remote attackers to elevate their privileges from Admin (or User Admin) to Sysadmin.

Frequently asked questions

What is CVE-2021-43397?: LiquidFiles before 3.6.3 allows remote attackers to elevate their privileges from Admin (or User Admin) to Sysadmin.
How severe is CVE-2021-43397?: CVE-2021-43397 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43397?: CVE-2021-43397 affects Liquidfiles. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43397?: 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-2021-43397 published?: CVE-2021-43397 was published on 2021-11-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:liquidfiles:liquidfiles:*:*:*:*:*:*:*:*

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