CVE-2026-24857

CRITICAL

Simsong Bulk Extractor - Out-of-Bounds Write

Title source: rule

Description

`bulk_extractor` is a digital forensics exploitation tool. Starting in version 1.4, `bulk_extractor`’s embedded unrar code has a heap‑buffer‑overflow in the RAR PPM LZ decoding path. A crafted RAR inside a disk image causes an out‑of‑bounds write in `Unpack::CopyString`, leading to a crash under ASAN (and likely a crash or memory corruption in production builds). There's potential for using this for RCE. As of time of publication, no known patches are available.

Scores

CVSS v3 9.8
EPSS 0.0008
EPSS Percentile 24.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-787 CWE-122
Status published

Affected Products (1)

simsong/bulk_extractor

Timeline

Published Jan 28, 2026
Tracked Since Feb 18, 2026