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CVE-2017-18258: libxml2 before 2.9.6 (exclusive); +4 more affected products
CVE-2017-18258. CVSS 2.0 base score 4.3 (MEDIUM, NVD). EPSS 0.02655 (percentile 0.85297), scored 13-Oct-2026.
Affected technology
libxml2 · before 2.9.6 (exclusive)
xmlsoft
n/a · n/a
Vendor not specified by the source
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.0 to before V3.1.5
Siemens
Description’s affected range: before 2.9.6
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.0): Network (remote) · No privileges required · User interaction required
What an attacker can do
Remote attackers can cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file. NVD’s CVSS 3.0 assessment (base score 6.5/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-770
- CCR priority
- 17.9 /100 (P5)
- CVSS 2.0
- 4.3 /10 · CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P · NVD
- EPSS
- 0.02655 · percentile 0.85297 · 2026-10-13
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-14 15:56:36.793806+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2017-18258.html