How severe is CVE-2021-45027?

CVE-2021-45027 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-45027 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45027?

CVE-2021-45027 affects Softlinkint Oliver V5 Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45027?

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-2021-45027 published?

CVE-2021-45027 was published on 2022-09-01 and last updated on 2026-06-17.

CVE-2021-45027

CVE-2021-45027 is a high-severity vulnerability in Softlinkint Oliver V5 Library with a CVSS 3.x base score of 7.5. 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-494.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Softlinkint Oliver V5 Library
Published: 2022-09-01
Last modified: 2026-06-17

Description

An arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053 via the FileServlet function allows for arbitrary file download by an attacker using unsanitized user supplied input.

Frequently asked questions

What is CVE-2021-45027?: An arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053 via the FileServlet function allows for arbitrary file download by an attacker using unsanitized user supplied input.
How severe is CVE-2021-45027?: CVE-2021-45027 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-45027 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45027?: CVE-2021-45027 affects Softlinkint Oliver V5 Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45027?: 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-2021-45027 published?: CVE-2021-45027 was published on 2022-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:softlinkint:oliver_v5_library:*:*:*:*:*:*:*:*

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