7.5

CVE-2016-1407: cisco ios_xr Improper Input Validation

CVSS: 7.5v3.0HighModified
Published 25-05-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-1407 is a high (CVSS 7.5) Improper Input Validation vulnerability in cisco ios_xr. EPSS estimates a 1.76% chance of exploitation in the next 30 days, higher than 77.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
1.76%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-05-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP ports, aka Bug ID CSCux95576.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.76%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

+0.02 pp

From 1.74% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.76%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco1 product
  • ios_xr2.0.0 | 3.0.0 | 3.0.1 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.6 | 3.2.50 | 3.3.0 | 3.3.1 | 3.3.2 | 3.3.3 | 3.3.4 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.5.0 | 3.5.2 | 3.5.3 | 3.5.4 | 3.6.0 | 3.6.1 | 3.6.2 | 3.6.3 | 3.6_base | 3.7.0 | 3.7.1 | 3.7.2 | 3.7.3 | 3.7_base | 3.8.0 | 3.8.1 | 3.8.2 | 3.8.3 | 3.8.4 | 3.9.0 | 3.9.1 | 3.9.2 | 3.9.3 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.0.11 | 4.0_base | 4.1.0 | 4.1.1 | 4.1.2 | 4.1_base | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.2.4 | 4.3.0 | 4.3.1 | 4.3.2 | 4.3.3 | 4.3.4 | 5.0.0 | 5.0.1 | 5.0_base | 5.1.0 | 5.1.1.k9sec | 5.1.2 | 5.1.3 | 5.2.0 | 5.2.1 | 5.2.2 | 5.2.3 | 5.2.4 | 5.2.5 | 5.3.0 | 5.3.1 | 5.3.2

1 vendor · 1 product

References

2 links