How severe is CVE-2020-26682?

CVE-2020-26682 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-2020-26682 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26682?

CVE-2020-26682 affects Libass Project Libass. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26682?

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-2020-26682 published?

CVE-2020-26682 was published on 2020-10-16 and last updated on 2026-06-17.

CVE-2020-26682

CVE-2020-26682 is a high-severity vulnerability in Libass Project Libass 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: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Libass Project Libass
Published: 2020-10-16
Last modified: 2026-06-17

Description

In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.

Frequently asked questions

What is CVE-2020-26682?: In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.
How severe is CVE-2020-26682?: CVE-2020-26682 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-2020-26682 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26682?: CVE-2020-26682 affects Libass Project Libass. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26682?: 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-2020-26682 published?: CVE-2020-26682 was published on 2020-10-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libass_project:libass:0.14.0:*:*:*:*:*:*:*

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