CVE-2020-26144: arista c-100_firmware Improper Input Validation
Vulnerability summary
CVE-2020-26144 is a medium (CVSS 6.5) Improper Input Validation vulnerability in arista c-100_firmware. EPSS estimates a 4.91% chance of exploitation in the next 30 days, higher than 92% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 11-05-2021PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext A-MSDU frames as long as the first 8 bytes correspond to a valid RFC1042 (i.e., LLC/SNAP) header for EAPOL. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
4.91%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 4.91% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu69 products
- linuxAll 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)
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
Samsung1 product
3 vendors · 85 products
References
13 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuVendor AdvisoryX Refsource CISCOThird Party Advisory
- www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63X Refsource MISCThird Party Advisory