exim: Possible information disclosure to remote atacker
Published Feb 1, 2017
5.9
MEDIUMCVSS 3.0
EPSS 3.10%
Description
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.
Affected products
No data.
Configuration 2
- 12.04
- 14.04
- 16.04
- 16.10
Configuration 3
- 8.0
No data.
Red Hat Enterprise Linux 5
exim
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | exim | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw does not affect the version of Exim shipped with Red Hat Enterprise Linux 5 because it is not built with DKIM (DomainKeys Identified Mail) support.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AV:N/AC:H/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.10% (0.03098) | 87.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.10% (0.03098) | 86.00th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.68% (0.01678) | 80.49th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.04% (0.04038) | 80.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.43% (0.01430) | 79.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.40% (0.00397) | 74.33th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00397) | 72.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00397) | 69.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://www.debian.org/security/2016/dsa-3747 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.exim.org/static/doc/CVE-2016-9963.txt x_refsource_CONFIRMMitigationVendor Advisory
- http://www.securityfocus.com/bid/94947 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037484 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3164-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-9963 Vendor Advisory
- https://bugs.exim.org/show_bug.cgi?id=1996 x_refsource_CONFIRMIssue TrackingMitigationVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1405322 Issue Tracking
- https://exim.org/static/doc/CVE-2016-9963.txt
- https://nvd.nist.gov/vuln/detail/CVE-2016-9963
- https://www.cve.org/CVERecord?id=CVE-2016-9963
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3747 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.exim.org/static/doc/CVE-2016-9963.txt | x_refsource_CONFIRMMitigationVendor Advisory | |
| http://www.securityfocus.com/bid/94947 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037484 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-3164-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-9963 | Vendor Advisory | |
| https://bugs.exim.org/show_bug.cgi?id=1996 | x_refsource_CONFIRMIssue TrackingMitigationVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1405322 | Issue Tracking | |
| https://exim.org/static/doc/CVE-2016-9963.txt | ||
| https://nvd.nist.gov/vuln/detail/CVE-2016-9963 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-9963 |
Change history (0)
No recorded changes yet.