CVE-2019-9947An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 3 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 urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.
- CVSS
- 5.4 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-93
- 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 | from 2.7.0 before 2.7.17; from 3.5.0 before 3.5.8; from 3.6.0 before 3.6.9; from 3.7.0 before 3.7.4 | NVD |
References
- https://bugs.python.org/issue35906x-refsource-misc, exploit, issue-tracking, patch, vendor-advisory
- https://security.netapp.com/advisory/ntap-20190404-0004/x-refsource-confirm, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/vendor-advisory, x-refsource-fedora
- https://access.redhat.com/errata/RHSA-2019:1260vendor-advisory, x-refsource-redhat, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/vendor-advisory, x-refsource-fedora
- https://lists.debian.org/debian-lts-announce/2019/06/msg00022.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00023.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00026.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:2030vendor-advisory, x-refsource-redhat, third-party-advisory
- https://usn.ubuntu.com/4127-2/vendor-advisory, x-refsource-ubuntu, third-party-advisory
- https://usn.ubuntu.com/4127-1/vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3335vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3520vendor-advisory, x-refsource-redhat, 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/2020-01/msg00040.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://security.gentoo.org/glsa/202003-26vendor-advisory, x-refsource-gentoo, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlmailing-list, x-refsource-mlist, third-party-advisory
- http://www.openwall.com/lists/oss-security/2021/02/04/2mailing-list, x-refsource-mlist, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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.