CVE-2020-24588
Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.
Does this matter?
Lower severity and a low EPSS score (3.61%). Track it; it rarely justifies an emergency change on its own.
Description
The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.
- CVSS 3.1
- 3.5 LOWCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 3.61% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- ieee/ieee 802.11 · linux/mac80211 · microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · debian/debian linux · siemens/scalance w1748-1 firmware · siemens/scalance w1750d firmware · siemens/scalance w1788-1 firmware · siemens/scalance w1788-2 firmware · siemens/scalance w1788-2ia firmware · siemens/scalance w721-1 firmware · siemens/scalance w722-1 firmware · siemens/scalance w734-1 firmware · siemens/scalance w738-1 firmware · +40 more
- Source
- cve@mitre.org
EPSS 3.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfThird Party Advisory
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
- https://www.fragattacks.comExploit, Third Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfThird Party Advisory
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
- https://www.fragattacks.comExploit, Third Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.htmlThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-019200.html
- https://cert-portal.siemens.com/productcert/html/ssa-913875.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.