In Lizard v1.0 and LZ5 v2.0 (the prior release, before the product was renamed), there is…
Priority LOW 38CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
In Lizard v1.0 and LZ5 v2.0 (the prior release, before the product was renamed), there is an unchecked buffer size during a memcpy in the Lizard_decompress_LIZv1 function (lib/lizard_decompress_liz.h). Remote attackers can leverage this vulnerability to cause a denial of service via a crafted input file, as well as achieve remote code execution.
Why it matters now
EPSS 0.01945 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lizard_project:lizard:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Lizard Project |
| cpe:2.3:a:lizard_project:lz5:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | Lizard Project |
- cpe:2.3:a:lizard_project:lizard:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Lizard Project
- cpe:2.3:a:lizard_project:lz5:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Lizard Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11498
- 2026-10-03 Alias added: GHSA-f6g3-24r8-3r58
References
More Lizard Project Lizard vulnerabilities
- TI-2018-12136 In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in… CVSS 3.0HIGH 7.5
Sources
- CVE-2018-11498 · CVE Program
- CVE-2018-11498 · NVD
- FIRST EPSS
- GHSA-f6g3-24r8-3r58 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences