CVE-2020-24586

Ieee 802.11 vulnerability

CVSS

3.5

EPSS

5.8%

EPSS pct

92th

Exploited

No known

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.

Affected vendor

Ieee

Affected product

Ieee 802.11

CVSS vector

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

Published

2021-05-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 5.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2020-24586

Confirm whether Ieee Ieee 802.11 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-24586.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-24586

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-24586 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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