High severity · published Sep 4, 2019
CVE-2019-15903
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or…
7.5
CVSS
6.6%
EPSS
No
On KEV
Description
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.6% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libexpat · Libexpat Project
before 2.2.8 · source: NVD
PY
Python · Python
2.7.0 before 2.7.17; 3.5.0 before 3.5.8; 3.6.0 before 3.6.10; 3.7.0 before 3.7.5 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
Affected product
LI
Libexpat
Libexpat Project
More from Libexpat
9.8
CVE-2024-45492
An issue was discovered in libexpat before 2.6.3
9.8
CVE-2024-45491
An issue was discovered in libexpat before 2.6.3
9.8
CVE-2022-25315
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames
9.8
CVE-2022-25235
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context
9.8
CVE-2022-25236
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs