CVE-2020-26147: arista c-65_firmware
Vulnerability summary
CVE-2020-26147 is a medium (CVSS 5.4) vulnerability in arista c-65_firmware. EPSS estimates a 7.60% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities.
Not severe (CVSS 5.4, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 31 · Related 25Timeline
- 11-05-2021PublishedVulnerability first disclosed.
- 14-04-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
EPSS trend
Probability
7.60%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
No change 0.00 pp
From 7.60% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: adjacent network, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu54 products
- linuxAll versions (No fix recorded) | < 4.4.0-219.252 | < 4.15.0-151.157 | < 5.4.0-77.86
- linux-aws< 4.4.0-1099.104 | < 4.4.0-1135.149 | < 4.15.0-1109.116 | < 5.4.0-1051.53
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
- linux-aws-5.4< 5.4.0-1051.53~18.04.1
Arista4 products
Debian2 products
- linux< 5.10.46-1
- debian_linuxEOL9.0
Linux1 product
- linux_kernel≥ 4.4, < 4.4.271 | ≥ 4.9, < 4.9.271 | ≥ 4.14, < 4.14.235 | ≥ 4.19, < 4.19.193 | ≥ 5.4, < 5.4.124 | ≥ 5.10, < 5.10.42 | ≥ 5.12, < 5.12.9
4 vendors · 61 products
References
23 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuVendor AdvisoryX Refsource CISCOThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/12Mailing ListX Refsource MLISTPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListX Refsource MLISTThird Party Advisory
- www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63X Refsource MISCThird Party Advisory