How severe is CVE-2020-22617?

CVE-2020-22617 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-2020-22617 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22617?

CVE-2020-22617 affects Ardour. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-22617?

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-2020-22617 published?

CVE-2020-22617 was published on 2021-10-08 and last updated on 2026-06-17.

CVE-2020-22617

CVE-2020-22617 is a critical-severity vulnerability in Ardour 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-416.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Ardour
Published: 2021-10-08
Last modified: 2026-06-17

Description

Ardour v5.12 contains a use-after-free vulnerability in the component ardour/libs/pbd/xml++.cc when using xmlFreeDoc and xmlXPathFreeContext.

Frequently asked questions

What is CVE-2020-22617?: Ardour v5.12 contains a use-after-free vulnerability in the component ardour/libs/pbd/xml++.cc when using xmlFreeDoc and xmlXPathFreeContext.
How severe is CVE-2020-22617?: CVE-2020-22617 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-2020-22617 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22617?: CVE-2020-22617 affects Ardour. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-22617?: 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-2020-22617 published?: CVE-2020-22617 was published on 2021-10-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ardour:ardour:5.12:*:*:*:*:*:*:*

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