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CVE-2016-1407

26
FAUCET Score

CVE-2016-1407 describes a denial-of-service vulnerability in Cisco IOS XR through version 5.3.2, affecting various ASR 9000 series routers. Remote attackers can exploit this by overwhelming the Local Packet Transport Services (LPTS) with numerous connection attempts to open TCP ports, causing sessions to drop. This vulnerability carries a high CVSS score of 7.5 due to its network-based attack vector, low attack complexity, and high impact on availability. 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
2.0.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:2.0.0:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:3.0.0:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:3.0.1:*:*:*:*:*:*:*
3.2.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:3.2.0:*:*:*:*:*:*:*
3.2.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:3.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 58th 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-20160519-ios-xr
Vendor Advisory
securitytracker.com / id/1035934