How severe is CVE-2021-22548?

CVE-2021-22548 has a CVSS 3.x base score of 6.5, 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 high, and availability low.

Is CVE-2021-22548 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22548?

CVE-2021-22548 affects Google Asylo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22548?

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

When was CVE-2021-22548 published?

CVE-2021-22548 was published on 2021-06-08 and last updated on 2026-06-17.

CVE-2021-22548

CVE-2021-22548 is a medium-severity vulnerability in Google Asylo 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. The underlying weakness is classified as CWE-788.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.6
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-788
Affected product: Google Asylo
Published: 2021-06-08
Last modified: 2026-06-17

Description

An attacker can change the pointer to untrusted memory to point to trusted memory region which causes copying trusted memory to trusted memory, if the latter is later copied out, it allows for reading of memory regions from the trusted region. It is recommended to update past 0.6.2 or git commit https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c

Frequently asked questions

What is CVE-2021-22548?: An attacker can change the pointer to untrusted memory to point to trusted memory region which causes copying trusted memory to trusted memory, if the latter is later copied out, it allows for reading of memory regions from the trusted region. It is recommended to update past 0.6.2 or git commit https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c
How severe is CVE-2021-22548?: CVE-2021-22548 has a CVSS 3.x base score of 6.5, 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 high, and availability low.
Is CVE-2021-22548 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22548?: CVE-2021-22548 affects Google Asylo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22548?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22548 published?: CVE-2021-22548 was published on 2021-06-08 and last updated on 2026-06-17.

References

https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c

Affected products (1)

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

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