6.5

CVE-2025-70101

Exploit
An out-of-bounds read in the ext4_ext_binsearch_idx function in src/ext4_extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before performing a binary search over extent index entries, which can result in invalid pointer calculations and an out-of-bounds memory read during extent tree traversal.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gkostka ≫ Lwext4 Version 1.0.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.214
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://github.com/gkostka/lwext4/issues/91
Patch
Exploit
Issue Tracking
https://github.com/sigdevel/pocs/blob/main/res/lwext4/3/sig11_lwext4_ext4_extent_815
Exploit
https://infosec.exchange/@sigdevel/116668958927817708
Patch
Third Party Advisory
Exploit
http://www.openwall.com/lists/oss-security/2026/06/29/6