How severe is CVE-2021-42951?

CVE-2021-42951 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-2021-42951 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-2021-42951?

CVE-2021-42951 affects Algorithmia Msol. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42951?

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-2021-42951 published?

CVE-2021-42951 was published on 2022-03-01 and last updated on 2026-07-05.

CVE-2021-42951

CVE-2021-42951 is a high-severity vulnerability in Algorithmia Msol 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.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Algorithmia Msol
Published: 2022-03-01
Last modified: 2026-07-05

Description

A Remote Code Execution (RCE) vulnerability exists in Algorithmia MSOL all versions before October 10 2021 of SaaS. Users can register for an account and are allocated a set number of credits to try the product. Once users authenticate, they can proceed to create a new, specially crafted Algorithm and subsequently launch remote code execution with their desired result.

Frequently asked questions

What is CVE-2021-42951?: A Remote Code Execution (RCE) vulnerability exists in Algorithmia MSOL all versions before October 10 2021 of SaaS. Users can register for an account and are allocated a set number of credits to try the product. Once users authenticate, they can proceed to create a new, specially crafted Algorithm and subsequently launch remote code execution with their desired result.
How severe is CVE-2021-42951?: CVE-2021-42951 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-2021-42951 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-2021-42951?: CVE-2021-42951 affects Algorithmia Msol. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42951?: 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-2021-42951 published?: CVE-2021-42951 was published on 2022-03-01 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:algorithmia:msol:*:*:*:*:*:*:*:*