CVE-2026-111159
libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
libewf through 20260924 contains a heap out-of-bounds read vulnerability in libewf_lef_extended_attribute_read_data() because UTF-16 name and value sizes are validated before being doubled. Attackers can supply a crafted .L01/.Lx01 file with oversized 'ea' metadata counts to crash the application or leak uninitialized heap memory through extended attributes.
| CWE | CWE-125 |
| Vendor | libyal |
| Product | libewf |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
libyal / libewf
0 ≤ 20260924
References
hackmd.io: https://hackmd.io/@haind-pwn/libewf-lef-extended-attribute-utf16-size-oob-read github.com: https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L362-L408 github.com: https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L456-L560 github.com: https://github.com/libyal/libewf vulncheck.com: https://www.vulncheck.com/advisories/libewf-through-20260924-heap-out-of-bounds-read-via-l01-extended-attribute-parsing
Credits
HaiND from the Post and Telecommunication Institute of Technology