Improper input validation in Cisco Email Security Appliance Firmware

CVE-2017-3818

A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device, aka a Malformed MIME Header Filtering Bypass. 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. More Information: CSCvb65245. Known Affected Releases: 9.7.1-066. Known Fixed Releases: 9.8.0-092.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.022 (82.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-3818: held from 0.026 to 0.022.

EPSS over last 30 days · oldest: 0.026 · newest: 0.022 · change: -0.003

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-3818?
CVE-2017-3818 is a medium-severity vulnerability in Cisco Email Security Appliance Firmware, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2017-02-03.
How severe is CVE-2017-3818?
Medium severity. CVSS v3 base score is 5.8 out of 10.