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Medium 5.3Published Sep 6, 2019
CVE-2019-16056An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 12 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.
- CVSS
- 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-20
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
python python python:python | through 2.7.16; from 3.0.0 through 3.0.1; from 3.1.0 through 3.1.5; from 3.2.0 through 3.2.6; from 3.3.0 through 3.3.7; from 3.4.0 through 3.4.10; from 3.5.0 through 3.5.7; from 3.6.0 through 3.6.9; and 1 more ranges | NVD |
fedoraproject fedora fedoraproject:fedora | 29; 30; 31 | NVD |
debian debian_linux debian:debian_linux | 8.0; 9.0 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04; 14.04; 16.04; 18.04; 19.04 | NVD |
redhat software_collections redhat:software_collections | 1.0 | NVD |
oracle communications_operations_monitor oracle:communications_operations_monitor | from 4.1 through 4.3; 3.4 | NVD |
oracle peoplesoft_enterprise_peopletools oracle:peoplesoft_enterprise_peopletools | 8.57; 8.58 | NVD |
oracle zfs_storage_appliance_kit oracle:zfs_storage_appliance_kit | 8.8 | NVD |
oracle solaris oracle:solaris | 11 | NVD |
opensuse leap opensuse:leap | 15.0; 15.1 | NVD |
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4KZEFP6E4YPYB52AF4WXCUDSGQOTF37/vendor-advisory, x-refsource-fedora
- https://lists.debian.org/debian-lts-announce/2019/09/msg00019.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00018.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/vendor-advisory, x-refsource-fedora
- https://usn.ubuntu.com/4151-1/vendor-advisory, x-refsource-ubuntu
- https://usn.ubuntu.com/4151-2/vendor-advisory, x-refsource-ubuntu
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.htmlvendor-advisory, x-refsource-suse, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.htmlvendor-advisory, x-refsource-suse, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QP46PQSUKYPGWTADQ67NOV3BUN6JM34Z/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QASRD4E2G65GGEHYKVHYCXB2XWAGTNL4/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDQQ56P7ZZR64XV5DUVWNSNXKKEXUG2J/vendor-advisory, x-refsource-fedora
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.htmlvendor-advisory, x-refsource-suse, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3725vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.htmlvendor-advisory, x-refsource-suse, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/vendor-advisory, x-refsource-fedora
- https://access.redhat.com/errata/RHSA-2019:3948vendor-advisory, x-refsource-redhat, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB/vendor-advisory, x-refsource-fedora
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlthird-party-advisory
- https://bugs.python.org/issue34155issue-tracking, vendor-advisory
- https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9patch
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlmailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.