CVE-2016-9963

moderate-risk
Published 2017-02-01

Exim before 4.87.1 might allow remote attackers to obtain the private DKIM signing key via vectors related to log files and bounce messages.

Do I need to act?

~
1.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (6)

Affected Vendors

Debian Canonical Exim

References (12)

Third Party Advisory http://www.debian.org/security/2016/dsa-3747
Mitigation http://www.exim.org/static/doc/CVE-2016-9963.txt
Third Party Advisory http://www.securityfocus.com/bid/94947
Third Party Advisory http://www.securitytracker.com/id/1037484
Third Party Advisory http://www.ubuntu.com/usn/USN-3164-1
Issue Tracking https://bugs.exim.org/show_bug.cgi?id=1996
Third Party Advisory http://www.debian.org/security/2016/dsa-3747
Mitigation http://www.exim.org/static/doc/CVE-2016-9963.txt
Third Party Advisory http://www.securityfocus.com/bid/94947
Third Party Advisory http://www.securitytracker.com/id/1037484
Third Party Advisory http://www.ubuntu.com/usn/USN-3164-1
Issue Tracking https://bugs.exim.org/show_bug.cgi?id=1996
35
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 4/34 · Minimal
Exposure 13/34 · Low