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CVE-2019-1920

23
FAUCET Score

CVE-2019-1920 is a denial-of-service vulnerability in the 802.11r Fast Transition (FT) implementation of Cisco IOS Access Points, affecting various Cisco Aironet 3700 series APs and their firmware. An unauthenticated, adjacent attacker can exploit this by sending crafted authentication requests to a targeted interface, causing the device to restart unexpectedly. This vulnerability has a CVSS score of 7.4 (High) due to its low attack complexity and high impact on availability, requiring only adjacent network access. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
15.3\(3\)jc14CPE matchmatch criteria
cpe:2.3:o:cisco:aironet_3700e_firmware:15.3\(3\)jc14:*:*:*:*:*:*:*
15.3\(3\)jd6CPE matchmatch criteria
cpe:2.3:o:cisco:aironet_3700e_firmware:15.3\(3\)jd6:*:*:*:*:*:*:*
15.3\(3\)jc14CPE matchmatch criteria
cpe:2.3:o:cisco:aironet_3700i_firmware:15.3\(3\)jc14:*:*:*:*:*:*:*
15.3\(3\)jd6CPE matchmatch criteria
cpe:2.3:o:cisco:aironet_3700i_firmware:15.3\(3\)jd6:*:*:*:*:*:*:*
15.3\(3\)jc14CPE matchmatch criteria
cpe:2.3:o:cisco:aironet_3700p_firmware:15.3\(3\)jc14:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 61st percentile among its peer group of 1,857 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos
Vendor Advisory
securityfocus.com / bid/109312
Third Party AdvisoryVDB Entry