CVE-2026-111159libewf through 20260924 Heap Out-of-Bounds Read via L01 Extended Attribute Parsing
Updated under an hour ago ()
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It affects libyal libewf. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
libyal libewf libyal:libewf (from the name) | through 20260924 | CNA record |
References
- https://hackmd.io/@haind-pwn/libewf-lef-extended-attribute-utf16-size-oob-readtechnical-description, exploit
- https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L362-L408technical-description
- https://github.com/libyal/libewf/blob/d76fd0bb21601e2969bc88ffdaeb861023f6a5b2/libewf/libewf_lef_extended_attribute.c#L456-L560technical-description
- https://github.com/libyal/libewfproduct
- https://www.vulncheck.com/advisories/libewf-through-20260924-heap-out-of-bounds-read-via-l01-extended-attribute-parsingthird-party-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.