CVE-2019-14899
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected products
Red Hat · VPNReferences
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899http://seclists.org/fulldisclosure/2020/Dec/32http://seclists.org/fulldisclosure/2020/Jul/23http://seclists.org/fulldisclosure/2020/Jul/24http://seclists.org/fulldisclosure/2020/Jul/25http://seclists.org/fulldisclosure/2020/Nov/20https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/https://support.apple.com/kb/HT211288https://support.apple.com/kb/HT211289https://support.apple.com/kb/HT211290https://support.apple.com/kb/HT211850https://support.apple.com/kb/HT211931