CVE-2019-1920: cisco access_points Improper Input Validation
Vulnerability summary
CVE-2019-1920 is a high (CVSS 7.4) Improper Input Validation vulnerability in cisco access_points. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.7% of scored vulnerabilities.
Timeline
- 17-07-2019PublishedVulnerability first disclosed.
- 21-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST7.4HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.80%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.80% 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
Cisco5 products
- access_points< 8.2.170.0 | ≥ 8.3, < 8.3.150.0 | ≥ 8.4, < 8.5.131.0 | ≥ 8.6, < 8.8.100.0
- aironet_3700e_firmware15.3\(3\)jc14 | 15.3\(3\)jd6
- aironet_3700i_firmware15.3\(3\)jc14 | 15.3\(3\)jd6
- aironet_3700p_firmware15.3\(3\)jc14 | 15.3\(3\)jd6
- cisco aironet access point software≥ unspecified, < 8.8.100.0
1 vendor · 5 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dosVendor AdvisoryX Refsource CISCO