How severe is CVE-2021-22557?

CVE-2021-22557 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-22557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22557?

CVE-2021-22557 affects Google Slo Generator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22557?

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

When was CVE-2021-22557 published?

CVE-2021-22557 was published on 2021-10-04 and last updated on 2026-06-17.

CVE-2021-22557

CVE-2021-22557 is a medium-severity vulnerability in Google Slo Generator 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 6.8
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Google Slo Generator
Published: 2021-10-04
Last modified: 2026-06-17

Description

SLO generator allows for loading of YAML files that if crafted in a specific format can allow for code execution within the context of the SLO Generator. We recommend upgrading SLO Generator past https://github.com/google/slo-generator/pull/173

Frequently asked questions

What is CVE-2021-22557?: SLO generator allows for loading of YAML files that if crafted in a specific format can allow for code execution within the context of the SLO Generator. We recommend upgrading SLO Generator past https://github.com/google/slo-generator/pull/173
How severe is CVE-2021-22557?: CVE-2021-22557 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-22557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22557?: CVE-2021-22557 affects Google Slo Generator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22557 published?: CVE-2021-22557 was published on 2021-10-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:slo_generator:*:*:*:*:*:*:*:*

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