How severe is CVE-2020-8944?

CVE-2020-8944 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-2020-8944 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8944?

CVE-2020-8944 affects Google Asylo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8944?

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

When was CVE-2020-8944 published?

CVE-2020-8944 was published on 2020-12-15 and last updated on 2026-06-17.

CVE-2020-8944

CVE-2020-8944 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 2.1
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Google Asylo
Published: 2020-12-15
Last modified: 2026-06-17

Description

An arbitrary memory write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a

Frequently asked questions

What is CVE-2020-8944?: An arbitrary memory write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a
How severe is CVE-2020-8944?: CVE-2020-8944 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-2020-8944 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8944?: CVE-2020-8944 affects Google Asylo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8944?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8944 published?: CVE-2020-8944 was published on 2020-12-15 and last updated on 2026-06-17.

References

https://github.com/google/asylo/commit/382da2b8b09cbf928668a2445efb778f76bd9c8a

Affected products (1)

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

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