CVE & CISA-KEV Catalog

CVE-2019-14899

HIGH
7.4
CVSS v3
NVD

Description

A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.

How to fix

Remediation Available
ipadosNVD
Affected:< 13.6Fixed in:13.6CVE-2019-14899derived from NVD
iphone osNVD
Affected:< 13.6Fixed in:13.6CVE-2019-14899derived from NVD
mac os xNVD
Affected:< 10.15.6Fixed in:10.15.6CVE-2019-14899derived from NVD
tvosNVD
Affected:< 13.4.8Fixed in:13.4.8CVE-2019-14899derived from NVD

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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 VectorAdjacent
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.84%probability of exploitation in 30 days
54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Related Vulnerabilities

Other CWE-300 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2009-3555Critical9.887%-Fix
CVE-2017-12150High7.413%-Fix
CVE-2017-12151High7.44.6%-Fix
CVE-2021-22890Low3.73.1%-Fix
CVE-2020-10749Medium6.02.4%-Fix
CVE-2017-7480Critical9.82.3%-Fix
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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.