CVE-2020-24588 — The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired...

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (Arista C-100 Firmware, Arista C-110 Firmware, Arista C-120 Firmware…).
2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
3. Exploitation requires user interaction: tighten email/web filtering and warn affected users.
4. Search available logs for exploit probes matching the vulnerability class (cryptography), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-327 · Use of a Broken or Risky Cryptographic Algorithm

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Check TLS negotiations and unexpected certificates in the component’s traffic.

Timeline

What happened to this CVE, newest first.

• 2026
• Record published
  Oct 15, 2026
• Affected products added · ieee/ieee 802.11, linux/mac80211, microsoft/windows 10, microsoft/windows 7, microsoft/windows 8.1, microsoft/windows rt
  Oct 15, 2026 · NIST National Vulnerability Database
• CVSS changed · 3.5
  Oct 15, 2026 · NIST National Vulnerability Database
• Source status changed · → Modified
  Oct 15, 2026 · NIST National Vulnerability Database
• Record created in this database
  Oct 15, 2026 · Alertas do Telegram
• 2021
• CVE published
  May 11, 2021 · mitre

Source activity

Repeated readings are counted rather than listed.

• 2× References added · Oct 15, 2026 – Oct 15, 2026
• 1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

14 on the record

• www.fragattacks.com
  Exploit, Third Party Advisory, NIST National Vulnerability Database
• www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html
  Third Party Advisory, NIST National Vulnerability Database
• lists.debian.org/debian-lts-announce/2023/04/msg00002.html
  mailing-list, NIST National Vulnerability Database
• nvd.nist.gov/vuln/detail/CVE-2020-24588
  GitHub Security Advisories
• github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
  Third Party Advisory, NIST National Vulnerability Database
• lists.debian.org/debian-lts-announce/2021/06/msg00020.html
  Mailing List, Third Party Advisory, mailing-list, NIST National Vulnerability Database
• github.com/advisories/GHSA-qrgr-qfr9-4xfh
  GitHub Security Advisories
• lists.debian.org/debian-lts-announce/2021/06/msg00019.html
  Mailing List, Third Party Advisory, mailing-list, NIST National Vulnerability Database
• cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
  Third Party Advisory, NIST National Vulnerability Database
• www.openwall.com/lists/oss-security/2021/05/11/12
  Mailing List, Third Party Advisory, mailing-list, NIST National Vulnerability Database
• cert-portal.siemens.com/productcert/html/ssa-019200.html
  NIST National Vulnerability Database
• www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advi
  Third Party Advisory, NIST National Vulnerability Database
• cert-portal.siemens.com/productcert/html/ssa-913875.html
  NIST National Vulnerability Database
• tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epc
  Third Party Advisory, vendor-advisory, NIST National Vulnerability Database

Elsewhere on this site

Related CVEs (same products)

• Medium CVE-2026-97844 Role: DNS Server Information Disclosure Vulnerability 2d
• Medium CVE-2026-97839 Role: DNS Server Information Disclosure Vulnerability 2d
• Medium CVE-2026-97840 Role: DNS Server Information Disclosure Vulnerability 2d
• Medium CVE-2026-97841 Role: DNS Server Information Disclosure Vulnerability 2d
• Medium CVE-2026-97842 Role: DNS Server Information Disclosure Vulnerability 2d
• Medium CVE-2026-97843 Role: DNS Server Information Disclosure Vulnerability 2d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No fixed version, patch or mitigation documented.
• No CISA SSVC assessment.
• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2020-24588 is "The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired...", rated Low. It affects C-100 Firmware (Arista); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 3.5 describes technical severity. EPSS 3.61% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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