How severe is CVE-2021-37222?

CVE-2021-37222 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-2021-37222 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37222?

CVE-2021-37222 affects Rcdcap Project Rcdcap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37222?

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-2021-37222 published?

CVE-2021-37222 was published on 2021-08-12 and last updated on 2026-06-17.

CVE-2021-37222

CVE-2021-37222 is a critical-severity vulnerability in Rcdcap Project Rcdcap 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.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Rcdcap Project Rcdcap
Published: 2021-08-12
Last modified: 2026-06-17

Description

Parsers in the open source project RCDCAP before 1.0.5 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via specially crafted packets.

Frequently asked questions

What is CVE-2021-37222?: Parsers in the open source project RCDCAP before 1.0.5 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via specially crafted packets.
How severe is CVE-2021-37222?: CVE-2021-37222 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-2021-37222 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37222?: CVE-2021-37222 affects Rcdcap Project Rcdcap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37222?: 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-2021-37222 published?: CVE-2021-37222 was published on 2021-08-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rcdcap_project:rcdcap:*:*:*:*:*:*:*:*