Is CVE-2019-16921 in the CISA KEV catalog?

No. CVE-2019-16921 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-16921?

CVE-2019-16921 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-16921?

CVE-2019-16921 has an EPSS score of 1.99% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-16921?

Upgrade linux kernel to 4.17 or later.

CVE & CISA-KEV Catalog

CVE-2019-16921

HIGHEPSS 78th pctl

7.5

CVSS v3

NVD

Description

In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813.

CWE-665

How to fix

Remediation Available

linux kernelNVD

Affected:< 4.17Fixed in:4.17CVE-2019-16921derived 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

1.99%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch2

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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.