How severe is CVE-2020-21605?

CVE-2020-21605 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-21605 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21605?

CVE-2020-21605 affects Struktur Libde265. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21605?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-21605 published?

CVE-2020-21605 was published on 2021-09-16 and last updated on 2026-06-17.

CVE-2020-21605

CVE-2020-21605 is a medium-severity vulnerability in Struktur Libde265 with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Struktur Libde265
Published: 2021-09-16
Last modified: 2026-06-17

Description

libde265 v1.0.4 contains a segmentation fault in the apply_sao_internal function, which can be exploited via a crafted a file.

Frequently asked questions

What is CVE-2020-21605?: libde265 v1.0.4 contains a segmentation fault in the apply_sao_internal function, which can be exploited via a crafted a file.
How severe is CVE-2020-21605?: CVE-2020-21605 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-21605 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21605?: CVE-2020-21605 affects Struktur Libde265. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21605?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-21605 published?: CVE-2020-21605 was published on 2021-09-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:struktur:libde265:1.0.4:*:*:*:*:*:*:*

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