9.1

CVE-2016-6445: cisco meeting_server Improper Input Validation

CVSS: 9.1v3.0CriticalModified
Published 27-10-2016Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-6445 is a critical (CVSS 9.1) Improper Input Validation vulnerability in cisco meeting_server. EPSS estimates a 2.51% chance of exploitation in the next 30 days, higher than 84.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.0 (NVD)
EPSS score
2.51%
0%100%
Low · +0.32 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-10-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 could allow an unauthenticated, remote attacker to masquerade as a legitimate user. This vulnerability is due to the XMPP service incorrectly processing a deprecated authentication scheme. A successful exploit could allow an attacker to access the system as another user.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.51%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

+0.32 pp

From 2.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.51%

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
  • meeting_server1.8.15 | 1.8_base | 1.9.0 | 1.9.2 | 2.0.0 | 2.0.1 | 2.0.3 | 2.0.4 | 2.0.5

1 vendor · 1 product

References

3 links