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Fencer Intel
medium 6.8

CVE-2019-1826 json

Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerability

published 7y ago modified 4mo ago also EUVD-2019-10383

cvss
6.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

A vulnerability in the quality of service (QoS) feature of Cisco Aironet Series Access Points (APs) could allow an authenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation on QoS fields within Wi-Fi frames by the affected device. An attacker could exploit this vulnerability by sending malformed Wi-Fi frames to an affected device. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a DoS condition.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 6.8 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD 3.0 5.7 CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.5 AV:A/AC:L/Au:S/C:N/I:N/A:C

Affected products

  • Cisco Cisco Aironet Access Point Software

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.