How severe is CVE-2020-19497?

CVE-2020-19497 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-19497 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-19497?

CVE-2020-19497 affects Matio Project Matio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-19497?

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-2020-19497 published?

CVE-2020-19497 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2020-19497

CVE-2020-19497 is a high-severity vulnerability in Matio Project Matio 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. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Matio Project Matio
Published: 2021-07-21
Last modified: 2026-06-17

Description

Integer overflow vulnerability in Mat_VarReadNextInfo5 in mat5.c in tbeu matio (aka MAT File I/O Library) 1.5.17, allows attackers to cause a Denial of Service or possibly other unspecified impacts.

Frequently asked questions

What is CVE-2020-19497?: Integer overflow vulnerability in Mat_VarReadNextInfo5 in mat5.c in tbeu matio (aka MAT File I/O Library) 1.5.17, allows attackers to cause a Denial of Service or possibly other unspecified impacts.
How severe is CVE-2020-19497?: CVE-2020-19497 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-19497 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-19497?: CVE-2020-19497 affects Matio Project Matio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-19497?: 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-2020-19497 published?: CVE-2020-19497 was published on 2021-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:matio_project:matio:1.5.17:*:*:*:*:*:*:*

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