Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N R U H N N 6.5 .0029 21.8 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Jan 9 Reserved by mitre Jun 3 EXPLOIT PUBLISHED — CVE-2025-70101. Public exploit reference added. Jun 3 Published (CNA: mitre)
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.
| Date | Event | Detail |
|---|---|---|
| January 9, 2026 | Reserved | Reserved by mitre |
| June 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2025-70101. Public exploit reference added. |
| June 3, 2026 | Published | Published (CNA: mitre) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2025-70101 at cve.org
Weaknesses: CWE-125
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-70101 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.