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cve[email protected]CVE-2020-24587
HistoryMay 11, 2021 - 8:15 p.m.

CVE-2020-24587

2021-05-1120:15:00
CWE-327
[email protected]
web.nvd.nist.gov
330
In Wild
8
cve
802.11
wi-fi protected access
wpa
wpa2
wpa3
wep
encryption
vulnerability
nvd

2.6 Low

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5.7 Medium

AI Score

Confidence

Low

1.8 Low

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

40.4%

JSON

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn’t require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.

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ADJACENT_NETWORK

Attack Complexity

HIGH

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User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

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Integrity Impact

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AI Score

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CVSS2

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ADJACENT_NETWORK

Access Complexity

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Authentication

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PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

40.4%

JSON
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