CVE-2026-24857
Last modified
CVE-2026-24857 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. `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. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Simsong | Bulk Extractor | >= 1.4 |
References
- https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64qExploit, Vendor Advisory
- https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64qExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-24857?
How severe is CVE-2026-24857?
How do I fix CVE-2026-24857?
Are you affected by CVE-2026-24857?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST