How severe is CVE-2020-8935?

CVE-2020-8935 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2020-8935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8935?

CVE-2020-8935 affects Google Asylo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8935?

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

When was CVE-2020-8935 published?

CVE-2020-8935 was published on 2020-12-15 and last updated on 2026-06-17.

CVE-2020-8935

CVE-2020-8935 is a medium-severity vulnerability in Google Asylo with a CVSS 3.x base score of 5.3. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.6
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Google Asylo
Published: 2020-12-15
Last modified: 2026-06-17

Description

An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.

Frequently asked questions

What is CVE-2020-8935?: An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite sections of the Enclave memory address. We recommend updating your library.
How severe is CVE-2020-8935?: CVE-2020-8935 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-8935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8935?: CVE-2020-8935 affects Google Asylo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8935?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8935 published?: CVE-2020-8935 was published on 2020-12-15 and last updated on 2026-06-17.

References

https://github.com/google/asylo/commit/ed0926bff0e423cd122a18b3d2fc772817f66825

Affected products (1)

cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*

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