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cve[email protected]CVE-2019-18990
HistorySep 30, 2020 - 6:15 p.m.

CVE-2019-18990

2020-09-3018:15:17
CWE-290
web.nvd.nist.gov
22
cve-2019-18990
realtek
authentication bypass
vulnerability
wlan
router
wpa2

4.8 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:L/Au:N/C:P/I:P/A:N

5.4 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.0%

A partial authentication bypass vulnerability exists on Realtek RTL8812AR 1.21WW, RTL8196D 1.0.0, RTL8192ER 2.10, and RTL8881AN 1.09 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful, a response is sent back as an encrypted frame, which would allow an attacker to discern information or potentially modify data.

Affected configurations

NVD
Node
realtekrtl8812ar_firmwareMatch1.21ww
AND
realtekrtl8812arMatch-
Node
realtekrtl8196dMatch-
AND
realtekrtl8196d_firmwareMatch1.0.0
Node
realtekrtl8192erMatch-
AND
realtekrtl8192er_firmwareMatch2.10
Node
realtekrtl8881anMatch-
AND
realtekrtl8881an_firmwareMatch1.09

4.8 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:L/Au:N/C:P/I:P/A:N

5.4 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.0%

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