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CVE-2019-12669

24
FAUCET Score

CVE-2019-12669 is a denial-of-service vulnerability in the RADIUS Change of Authorization (CoA) code of Cisco TrustSec within Cisco IOS XE Software, affecting various Cisco Catalyst switches and IOS. An unauthenticated, remote attacker can exploit this by sending a malformed packet, leading to a DoS condition. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
15.2\(3\)eCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(3\)e:*:*:*:*:*:*:*
15.2\(3\)e5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(3\)e5:*:*:*:*:*:*:*
16.11.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:16.11.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.83%
Probability of exploitation in next 30 days
EPSS Percentile
76.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0183 is in the 60th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-20190925-tsec
Vendor Advisory