How severe is CVE-2021-33207?

CVE-2021-33207 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-33207 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33207?

CVE-2021-33207 affects Softwareag Mashzone Nextgen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33207?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-33207 published?

CVE-2021-33207 was published on 2022-04-05 and last updated on 2026-06-17.

CVE-2021-33207

CVE-2021-33207 is a critical-severity vulnerability in Softwareag Mashzone Nextgen with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Softwareag Mashzone Nextgen
Published: 2022-04-05
Last modified: 2026-06-17

Description

The HTTP client in MashZone NextGen through 10.7 GA deserializes untrusted data when it gets an HTTP response with a 570 status code.

Frequently asked questions

What is CVE-2021-33207?: The HTTP client in MashZone NextGen through 10.7 GA deserializes untrusted data when it gets an HTTP response with a 570 status code.
How severe is CVE-2021-33207?: CVE-2021-33207 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-33207 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33207?: CVE-2021-33207 affects Softwareag Mashzone Nextgen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33207?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-33207 published?: CVE-2021-33207 was published on 2022-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:softwareag:mashzone_nextgen:*:*:*:*:*:*:*:*

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