Is CVE-2021-31776 in the CISA KEV catalog?

No. CVE-2021-31776 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31776?

CVE-2021-31776 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-31776?

CVE-2021-31776 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31776?

Upgrade vpn client to 2.14.14 or later.

CVE & CISA-KEV Catalog

CVE-2021-31776

HIGH

7.8

CVSS v3

NVD

Description

Aviatrix VPN Client before 2.14.14 on Windows has an unquoted search path that enables local privilege escalation to the SYSTEM user, if the machine is misconfigured to allow unprivileged users to write to directories that are supposed to be restricted to administrators.

CWE-428

How to fix

Remediation Available

vpn clientNVD

Affected:< 2.14.14Fixed in:2.14.14CVE-2021-31776derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Vendor Advisory3

Related Vulnerabilities

Other CWE-428 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-38408	Critical	9.8	77%	-	Fix
CVE-2020-15261	High	8.0	11%	-	Fix
CVE-2018-10619	High	7.8	2.8%	-	Fix
CVE-2019-17658	Critical	9.8	2.2%	-	-
CVE-2015-4173	Medium	6.9	2.1%	-	Fix
CVE-2019-16647	High	7.2	2.0%	-	-

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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.