CVE-2020-26146
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 11, 2021
- Updated
- Jun 2, 2026
- Reserved
- Sep 29, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- 20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021vendor-advisory
- https://www.fragattacks.com/
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
- [oss-security] 20210511 various 802.11 security issues - fragattacks.commailing-list
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
- https://cert-portal.siemens.com/productcert/html/ssa-913875.html
- https://cert-portal.siemens.com/productcert/html/ssa-019200.html
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