How severe is CVE-2020-36133?

CVE-2020-36133 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-2020-36133 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36133?

CVE-2020-36133 affects Aomedia. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36133?

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-2020-36133 published?

CVE-2020-36133 was published on 2021-12-02 and last updated on 2026-06-17.

CVE-2020-36133

CVE-2020-36133 is a high-severity vulnerability in Aomedia 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Aomedia
Published: 2021-12-02
Last modified: 2026-06-17

Description

AOM v2.0.1 was discovered to contain a global buffer overflow via the component av1/encoder/partition_search.h.

Frequently asked questions

What is CVE-2020-36133?: AOM v2.0.1 was discovered to contain a global buffer overflow via the component av1/encoder/partition_search.h.
How severe is CVE-2020-36133?: CVE-2020-36133 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-2020-36133 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36133?: CVE-2020-36133 affects Aomedia. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36133?: 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-2020-36133 published?: CVE-2020-36133 was published on 2021-12-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:aomedia:aomedia:2.0.1:*:*:*:*:*:*:*

More vulnerabilities in Aomedia

CVE-2021-30475 — Critical (CVSS 9.8): aom_dsp/noise_model.c in libaom in AOMedia before 2021-03-24 has a buffer overflow.
CVE-2021-30474 — Critical (CVSS 9.8): aom_dsp/grain_table.c in libaom in AOMedia before 2021-03-30 has a use-after-free.
CVE-2021-30473 — Critical (CVSS 9.8): aom_image.c in libaom in AOMedia before 2021-04-07 frees memory that is not located on the heap.
CVE-2023-6879 — Critical (CVSS 9.0): Increasing the resolution of video frames, while performing a multi-threaded encode, can result in a heap overflow in…
CVE-2020-36131 — High (CVSS 8.8): AOM v2.0.1 was discovered to contain a stack buffer overflow via the component stats/rate_hist.c.
CVE-2020-36129 — High (CVSS 8.8): AOM v2.0.1 was discovered to contain a stack buffer overflow via the component src/aom_image.c.

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