CVE-2020-26146: arista c-100_firmware Improper Input Validation

CVSS: 5.3v3.1MediumModified

AliasesUBUNTU-CVE-2020-26146

Published 11-05-2021Last modified 02-06-2026

Vulnerability summary

CVE-2020-26146 is a medium (CVSS 5.3) Improper Input Validation vulnerability in arista c-100_firmware. EPSS estimates a 5.62% chance of exploitation in the next 30 days, higher than 92.8% of scored vulnerabilities.

Overall risk

22/100

0100

Low · default modelHow is this calculated?

CVSS score

5.3/10

010

Medium · v3.1 (CVE.org)

EPSS score

5.62%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2

RHSA-2021:4140 RHSA-2021:4356

Timeline

11-05-2021
PublishedVulnerability first disclosed.
02-06-2026
Last modifiedVulnerability information updated.

Description

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.15.3v2.02.9

EPSS trend

Probability

5.62%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 5.62% on 18-09-2026

18-09-202618-10-2026

EPSS score

5.62%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected systems

Ubuntu170 products

linuxAll versions (No fix recorded)
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded)
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15All versions (No fix recorded)
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14All versions (No fix recorded)
linux-aws-6.17All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8All versions (No fix recorded)
linux-aws-7.0All versions (No fix recorded)
linux-aws-fipsAll versions (No fix recorded)
linux-aws-hweAll versions (No fix recorded)
linux-azureAll versions (No fix recorded)
linux-azure-4.15All versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15All versions (No fix recorded)
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.14All versions (No fix recorded)
linux-azure-6.17All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8All versions (No fix recorded)
linux-azure-7.0All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded)
linux-azure-fde-5.15All versions (No fix recorded)
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.14All versions (No fix recorded)
linux-azure-fde-6.17All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8All versions (No fix recorded)
linux-azure-fde-7.0All versions (No fix recorded)
linux-azure-fipsAll versions (No fix recorded)
linux-azure-nvidiaAll versions (No fix recorded)
linux-azure-nvidia-6.14All versions (No fix recorded)
linux-bluefieldAll versions (No fix recorded)
linux-fipsAll versions (No fix recorded)
linux-gcpAll versions (No fix recorded)
linux-gcp-4.15All versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15All versions (No fix recorded)
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14All versions (No fix recorded)
linux-gcp-6.17All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8All versions (No fix recorded)
linux-gcp-7.0All versions (No fix recorded)
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded)
linux-gkeAll versions (No fix recorded)
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded)
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15All versions (No fix recorded)
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.14All versions (No fix recorded)
linux-hwe-6.17All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8All versions (No fix recorded)
linux-hwe-7.0All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibmAll versions (No fix recorded)
linux-ibm-5.15All versions (No fix recorded)
linux-ibm-5.4All versions (No fix recorded)
linux-ibm-6.8All versions (No fix recorded)
linux-intelAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotgAll versions (No fix recorded)
linux-intel-iotg-5.15All versions (No fix recorded)
linux-iotAll versions (No fix recorded)
linux-kvmAll versions (No fix recorded)
linux-lowlatencyAll versions (No fix recorded)
linux-lowlatency-hwe-5.15All versions (No fix recorded)
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8All versions (No fix recorded)
linux-lts-xenialAll versions (No fix recorded)
linux-nvidiaAll versions (No fix recorded)
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.17All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8All versions (No fix recorded)
linux-nvidia-7.0All versions (No fix recorded)
linux-nvidia-bosAll versions (No fix recorded)
linux-nvidia-lowlatencyAll versions (No fix recorded)
linux-nvidia-tegraAll versions (No fix recorded)
linux-nvidia-tegra-5.15All versions (No fix recorded)
linux-nvidia-tegra-igxAll versions (No fix recorded)
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14All versions (No fix recorded)
linux-oem-6.17All versions (No fix recorded)
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oem-7.0All versions (No fix recorded)
linux-oracleAll versions (No fix recorded)
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14All versions (No fix recorded)
linux-oracle-6.17All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8All versions (No fix recorded)
linux-oracle-7.0All versions (No fix recorded)
linux-raspiAll versions (No fix recorded)
linux-raspi-5.4All versions (No fix recorded)
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-realtime-6.14All versions (No fix recorded)
linux-realtime-6.17All versions (No fix recorded)
linux-realtime-6.8All versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15All versions (No fix recorded)
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14All versions (No fix recorded)
linux-riscv-6.17All versions (No fix recorded)
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8All versions (No fix recorded)
linux-riscv-7.0All versions (No fix recorded)
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-vmwareAll versions (No fix recorded)
linux-xilinxAll versions (No fix recorded)
linux-xilinx-zynqmpAll versions (No fix recorded)

Show all 170

Arista15 products

c-100_firmware< 11.0.0-36
c-110_firmware< 11.0.0-36
c-120_firmware< 11.0.0-36
c-130_firmware< 11.0.0-36
c-200_firmware< 11.0.0-36

Show all 15

Samsung1 product

galaxy_i9305_firmware4.4.4

Siemens1 product

scalance_w1750d_firmware< 8.7.1.3

4 vendors · 187 products

References

12 links

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuVendor AdvisoryX Refsource CISCOThird Party Advisory
www.fragattacks.comX Refsource MISCThird Party Advisory
github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdX Refsource MISCThird Party Advisory
www.openwall.com/lists/oss-security/2021/05/11/12Mailing ListX Refsource MLISTThird Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfX Refsource CONFIRMThird Party Advisory
www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63X Refsource MISCThird Party Advisory
cert-portal.siemens.com/productcert/html/ssa-913875.html
cert-portal.siemens.com/productcert/html/ssa-019200.html
ubuntu.com/security/CVE-2020-26146REPORT
papers.mathyvanhoef.com/usenix2021.pdfREPORT

Show all 12 references

Vulnerability summary

Advisory lineage

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

Related vulnerabilities