7.8

CVE-2016-6356: cisco email_security_appliance_firmware Improper Input Validation

CVSS: 7.8v2.0HighModified
Published 28-10-2016Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-6356 is a high (CVSS 7.8) Improper Input Validation vulnerability in cisco email_security_appliance_firmware. EPSS estimates a 3.00% chance of exploitation in the next 30 days, higher than 87.2% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
3.00%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-10-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter or content filter to incoming email attachments. The vulnerability is not limited to any specific rules or actions for a message filter or content filter. More Information: CSCuz63143. Known Affected Releases: 8.5.7-042 9.7.0-125. Known Fixed Releases: 10.0.0-125 9.1.1-038 9.7.2-047.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.00%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

+0.13 pp

From 2.86% on 21-09-2026

21-09-202621-10-2026
EPSS score
3.00%

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
  • email_security_appliance_firmware3.3.1-09 | 7.1.0 | 7.1.1 | 7.1.2 | 7.1.3 | 7.1.4 | 7.1.5 | 7.3.0 | 7.3.1 | 7.3.2 | 7.5.0 | 7.5.1 | 7.5.2 | 7.5.2-201 | 7.6.0 | 7.6.1-000 | 7.6.1-gpl-022 | 7.6.2 | 7.6.3-000 | 7.6.3-025 | 7.7.0-000 | 7.7.1-000 | 7.8.0 | 7.8.0-311 | 8.0.1-023 | 8.0_base | 8.5.0-000 | 8.5.0-er1-198 | 8.5.6-052 | 8.5.6-073 | 8.5.6-074 | 8.5.6-106 | 8.5.6-113 | 8.5.7-042 | 8.6.0 | 8.6.0-011 | 8.9.0 | 8.9.1-000 | 8.9.2-032 | 9.0.0 | 9.0.0-212 | 9.0.0-461 | 9.0.5-000 | 9.1.0 | 9.1.0-011 | 9.1.0-032 | 9.1.0-101 | 9.4.0 | 9.4.4-000 | 9.5.0-000 | 9.5.0-201 | 9.6.0-000 | 9.6.0-042 | 9.6.0-051 | 9.7.0-125 | 9.7.1-066

1 vendor · 1 product

References

3 links