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CVE-2014-2143

15
FAUCET Score

CVE-2014-2143 describes a denial-of-service vulnerability in the IKE implementation of Cisco IOS 15.4(1)T and earlier, and IOS XE. Remote attackers can exploit this flaw by sending specially crafted Main Mode packets, causing security associations to drop. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, but only resulting in a partial availability impact. There is 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
<= 15.4\(1\)tCPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
15.0\(1\)seCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
15.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0175 is in the 61st percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/CiscoSecurityNotice/CVE-2014-2143
Vendor Advisory
tools.cisco.com / security/center/viewAlert.x
Vendor Advisory