mailx: command execution flaw
Published Jan 14, 2020
7.8
HIGHCVSS 3.1
EPSS 1.55%
Description
BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via a crafted email address.
Affected products
-
- Version 8.1.2 and earlierStatusaffectedConstraints-
- Version
Configuration 1
- 6.0
- 7.0
- 6.0
- 7.0
- 6.6
- 7.3
- 7.4
- 7.6
- 7.7
- 6.6
- 7.2
- 7.3
- 7.4
- 7.5
- 7.6
- 7.7
- 6.6
- 7.3
- 7.6
- 7.7
- 6.0
- 7.0
Configuration 2
- 7.0
Configuration 3
- 8.1.2
No data.
Red Hat Enterprise Linux 6
mailx-0:12.4-8.el6_6
Fixed · RHSA-2014:1999
Red Hat Enterprise Linux 7
mailx-0:12.5-12.el7_0
Fixed · RHSA-2014:1999
Red Hat Enterprise Linux 5
mailx
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | mailx-0:12.4-8.el6_6 | Fixed | RHSA-2014:1999 |
| Red Hat Enterprise Linux 7 | mailx-0:12.5-12.el7_0 | Fixed | RHSA-2014:1999 |
| Red Hat Enterprise Linux 5 | mailx | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.55% (0.01550) | 74.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01550) | 71.78th | v5 (v2026.06.15) |
| Mar 16, 2026 | 0.55% (0.00550) | 67.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.56% (0.01561) | 80.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00101) | 43.28th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.10% (0.00101) | 41.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00101) | 39.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.13% (0.01132) | 55.54th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.61% (0.01606) | 75.08th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
References (9)
- http://linux.oracle.com/errata/ELSA-2014-1999.html x_refsource_MISCThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-1999.html x_refsource_MISCThird Party Advisory
- http://seclists.org/oss-sec/2014/q4/1066 x_refsource_MISCMailing ListPatchThird Party Advisory
- http://www.debian.org/security/2014/dsa-3104 x_refsource_MISCThird Party Advisory
- http://www.debian.org/security/2014/dsa-3105 x_refsource_MISCThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-7844 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1162783 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-7844
- https://www.cve.org/CVERecord?id=CVE-2014-7844
| Link | Providers | Tags |
|---|---|---|
| http://linux.oracle.com/errata/ELSA-2014-1999.html | x_refsource_MISCThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2014-1999.html | x_refsource_MISCThird Party Advisory | |
| http://seclists.org/oss-sec/2014/q4/1066 | x_refsource_MISCMailing ListPatchThird Party Advisory | |
| http://www.debian.org/security/2014/dsa-3104 | x_refsource_MISCThird Party Advisory | |
| http://www.debian.org/security/2014/dsa-3105 | x_refsource_MISCThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-7844 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1162783 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-7844 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-7844 |
Change history (0)
No recorded changes yet.