CVE-2019-9740An 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 query string after a ? character) followed by an HTTP header or a Redis command. 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
- 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 2.0 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
- http://www.securityfocus.com/bid/107466vdb-entry, x-refsource-bid, 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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/vendor-advisory, x-refsource-fedora
- 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
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://usn.ubuntu.com/4127-1/vendor-advisory, x-refsource-ubuntu
- https://seclists.org/bugtraq/2019/Oct/29mailing-list, x-refsource-bugtraq, 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
- 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/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://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://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.htmlx-refsource-misc, third-party-advisory, vdb-entry
- http://www.openwall.com/lists/oss-security/2021/02/04/2mailing-list, third-party-advisory
- https://bugs.python.org/issue36276exploit, issue-tracking, vendor-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.