01 Record

CVE-2020-24586

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

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 5.76% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 92.9% of scored records. A rank, not a probability.
NVD base score: 3.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2021-05-11 00:00Z5 YR AGO

Last updated

2024-08-04 15:19Z2 YR AGO

Reserved

2020-08-21

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-212Improper Removal of Sensitive Information Before Storage or TransferBase

Data version

5.1

Document digest

1d1bdfa39779add8b41514c1fe5b1413b48cd76f3c53d2f9483993dbd3b471d7

05 Affected products

VendorProductVersionsPlatforms

aristac-200Not specified—

aristac-200_firmwareNot specified—

aristac-230Not specified—

aristac-230_firmwareNot specified—

aristac-235Not specified—

aristac-235_firmwareNot specified—

aristac-250Not specified—

aristac-250_firmwareNot specified—

aristac-260Not specified—

aristac-260_firmwareNot specified—

debiandebian_linuxNot specified—

ieeeieee_802.11Not specified—

intelac_1550Not specified—

intelac_1550_firmwareNot specified—

intelac_3165Not specified—

intelac_3165_firmwareNot specified—

intelac_3168Not specified—

intelac_3168_firmwareNot specified—

intelac_7265Not specified—

intelac_7265_firmwareNot specified—

intelac_8260Not specified—

intelac_8260_firmwareNot specified—

intelac_8265Not specified—

intelac_8265_firmwareNot specified—

intelac_9260Not specified—

intelac_9260_firmwareNot specified—

intelac_9461Not specified—

intelac_9461_firmwareNot specified—

intelac_9462Not specified—

intelac_9462_firmwareNot specified—

intelac_9560Not specified—

intelac_9560_firmwareNot specified—

intelax1650Not specified—

intelax1650_firmwareNot specified—

intelax1675Not specified—

intelax1675_firmwareNot specified—

intelax200Not specified—

intelax200_firmwareNot specified—

intelax201Not specified—

intelax201_firmwareNot specified—

intelax210Not specified—

intelax210_firmwareNot specified—

linuxlinux_kernelNot specified—

linuxmac80211Not specified—

redhatenterprise_linuxNot specified—

06 References

www.intel.comhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html
tools.cisco.com20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuvendor-advisory
www.fragattacks.comhttps://www.fragattacks.com
github.comhttps://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
www.openwall.com[oss-security] 20210511 various 802.11 security issues - fragattacks.comhttp://www.openwall.com/lists/oss-security/2021/05/11/12mailing-list
lists.debian.org[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlmailing-list
lists.debian.org[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlmailing-list
www.arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
lists.debian.org[debian-lts-announce] 20230401 [SECURITY] [DLA 3380-1] firmware-nonfree LTS new upstream version (security updates and newer firmware for Linux 5.10)https://lists.debian.org/debian-lts-announce/2023/04/msg00002.htmlmailing-list

07 Fixed in

AlmaLinux 8

kernel-tools-libs-devel
Fixed in 4.18.0-348.el8

Arch Linux

linux
Fixed in 5.12.9.arch1-1
linux-hardened
Fixed in 5.12.9.hardened1-1
linux-lts
Fixed in 5.10.42-1
linux-zen
Fixed in 5.12.9.zen1-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

CloudLinux 8

kernel-tools-libs-devel
Fixed in 4.18.0-348.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Debian 12

firmware-nonfree
Fixed in 20210818-1
linux
Fixed in 5.10.46-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

firmware-nonfree
Fixed in 20210818-1
linux
Fixed in 5.10.46-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

firmware-nonfree
Fixed in 20210818-1
linux
Fixed in 5.10.46-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.