Is CVE-2021-31919 in the CISA KEV catalog?

No. CVE-2021-31919 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31919?

CVE-2021-31919 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-31919?

CVE-2021-31919 has an EPSS score of 1.08% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31919?

Upgrade rkyv to 0.6.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-31919

HIGH

7.5

CVSS v3

NVD

Description

An issue was discovered in the rkyv crate before 0.6.0 for Rust. When an archive is created via serialization, the archive content may contain uninitialized values of certain parts of a struct.

CWE-909

How to fix

Remediation Available

rkyvNVD

Affected:< 0.6.0Fixed in:0.6.0CVE-2021-31919derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.08%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Third-Party Advisory1

rustsec.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.