How severe is CVE-2021-45761?

CVE-2021-45761 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 none, integrity none, and availability high.

Is CVE-2021-45761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45761?

CVE-2021-45761 affects Ropium Project Ropium. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45761?

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-2021-45761 published?

CVE-2021-45761 was published on 2022-01-14 and last updated on 2026-06-17.

CVE-2021-45761

CVE-2021-45761 is a high-severity vulnerability in Ropium Project Ropium 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Ropium Project Ropium
Published: 2022-01-14
Last modified: 2026-06-17

Description

ROPium v3.1 was discovered to contain an invalid memory address dereference via the find() function.

Frequently asked questions

What is CVE-2021-45761?: ROPium v3.1 was discovered to contain an invalid memory address dereference via the find() function.
How severe is CVE-2021-45761?: CVE-2021-45761 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 none, integrity none, and availability high.
Is CVE-2021-45761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45761?: CVE-2021-45761 affects Ropium Project Ropium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45761?: 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-2021-45761 published?: CVE-2021-45761 was published on 2022-01-14 and last updated on 2026-06-17.

References

https://github.com/Boyan-MILANOV/ropium/issues/32

Affected products (1)

cpe:2.3:a:ropium_project:ropium:3.1:*:*:*:*:*:*:*

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