Medium severity5.4NVD Advisory· Published May 11, 2021· Updated Apr 14, 2026

CVE-2020-26147

Description

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

230

Arista/C 65 Firmware
cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:*
Arista/C 75 Firmware
cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:*
Arista/O 90 Firmware
cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:*
Arista/W 68 Firmware
cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:*
Debian/linux
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Linux/Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Range: >=4.4,<4.4.271
Siemens Foundation/Scalance W1700 Ieee 802.11ac Firmware
cpe:2.3:o:siemens:scalance_w1700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:*
Siemens Foundation/Scalance W700 Ieee 802.11n Firmware
cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*
Ubuntu/Linux Kernelllm-fuzzy
Range: 5.8.9
osv-coords221 versions
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pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%208 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%209 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP2 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP3 pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_40&distro=HPE%20Helion%20OpenStack%208 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_40&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_40&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_40&distro=SUSE%20OpenStack%20Cloud%208 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_40&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208 pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_21&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4 pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.18.0-348.el8+ 220 more
- (no CPE)range: < 4.18.0-348.el8
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.78.1.lp152.8.34.1
- (no CPE)range: < 5.3.18-59.5.2.18.2.2
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.1
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.1
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.3.14.1
- (no CPE)range: < 5.3.18-lp152.3.14.1
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-lp152.3.14.1
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 5.3.18-lp152.78.1
- (no CPE)range: < 5.3.18-59.5.1
- (no CPE)range: < 5.3.18-lp152.3.14.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-18.50.2
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 5.3.18-24.67.3.9.30.2
- (no CPE)range: < 5.3.18-24.67.3.9.30.2
- (no CPE)range: < 5.3.18-59.5.2.18.2.2
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.4.121-92.158.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 5.3.18-24.67.3
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-122.74.2
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-5.3.2
- (no CPE)range: < 1-7.5.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 5.3.18-24.67.2
- (no CPE)range: < 5.3.18-59.5.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 5.3.18-24.67.4
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-24.67.4
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-24.67.4
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.12.14-10.46.1
- (no CPE)range: < 5.3.18-39.1
- (no CPE)range: < 5.3.18-8.13.1
- (no CPE)range: < 5.3.18-8.13.1
- (no CPE)range: < 4.12.14-10.46.1
- (no CPE)range: < 5.3.18-39.1
- (no CPE)range: < 5.3.18-8.13.1
- (no CPE)range: < 5.3.18-18.50.2
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 5.3.18-24.67.2
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 5.3.18-24.67.2
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.4.121-92.158.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-10.46.1
- (no CPE)range: < 5.3.18-39.1
- (no CPE)range: < 5.3.18-8.13.1
- (no CPE)range: < 5.3.18-18.50.1
- (no CPE)range: < 5.3.18-38.3.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 4.12.14-16.59.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 5.3.18-24.67.1
- (no CPE)range: < 5.3.18-59.5.1
- (no CPE)range: < 4.4.121-92.158.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-122.74.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.4.180-94.147.1
- (no CPE)range: < 4.12.14-95.77.1
- (no CPE)range: < 4.12.14-10.46.1
- (no CPE)range: < 5.3.18-39.1
- (no CPE)range: < 5.3.18-8.13.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 5.3.18-59.5.2
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 4.12.14-150.75.1
- (no CPE)range: < 4.12.14-197.92.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-6.3.1
- (no CPE)range: < 1-8.3.1

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2021/05/11/12nvdMailing ListPatchThird Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfnvdThird Party Advisory
github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdnvdThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlnvdMailing ListThird Party Advisory
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWunvdThird Party Advisory
www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63nvdThird Party Advisory
www.fragattacks.comnvdProduct
cert-portal.siemens.com/productcert/html/ssa-019200.htmlnvd
cert-portal.siemens.com/productcert/html/ssa-913875.htmlnvd

News mentions

Siemens SCALANCE
CISA Alerts

cvss	0.351
epss	0.006
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000