CVE-2026-18495
A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the `tiff2pdf` utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing a 64-bit `StripByteCounts` value to be truncated to a 32-bit integer. This leads to an undersized memory allocation and a subsequent out-of-bounds memory copy, resulting in a crash and severe memory corruption.
Published:Sep 11, 2026
Last Modified:Sep 11, 2026
EPS:Sep 11, 2026
EPSS Score:
CVSS Score:6.1
Affected Products
Vendor
Product
Action
Vendor
Redhat
Product
Ceph Storage
Redhat
Ceph Storage
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Vendor
Redhat
Product
Hummingbird
Redhat
Hummingbird
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
