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 (Oct 27, 2026, 2:50 PM ET)

Does this affect you?

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.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Exploited in the last 30 days

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

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
1–10 of 13

References

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.html	mailing-list, x-refsource-mlist, third-party-advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00018.html	mailing-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.html	vendor-advisory, x-refsource-suse, third-party-advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html	vendor-advisory, x-refsource-suse, third-party-advisory
1–10 of 31

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.