lrzip v0.651 was discovered to contain a heap overflow via the…
Priority MEDIUM 58CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00346 28th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:long_range_zip_project:long_range_zip:0.651:*:*:*:*:*:*:* | 0.651 | Vulnerable | Long Range Zip Project |
- cpe:2.3:a:long_range_zip_project:long_range_zip:0.651:*:*:*:*:*:*:* Versions 0.651 Vulnerable ·Long Range Zip Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-39741
- 2026-10-03 Alias added: GHSA-rvm8-5gx5-v3wg
References
More Long Range Zip Project Long Range Zip vulnerabilities
- TI-2018-07555 In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in the lzma_decompress_buf… CVSS 3.0CRITICAL 9.8
- TI-2017-06352 The read_1g function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to… CVSS 3.1HIGH 7.8
- TI-2021-12862 An issue was discovered in lrzip version 0.641. CVSS 3.1HIGH 7.8
- TI-2018-08217 In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in… CVSS 3.1MEDIUM 6.5
- TI-2018-04186 In Long Range Zip (aka lrzip) 0.631, there is an infinite loop and application hang in… CVSS 3.1MEDIUM 5.5
- TI-2017-06355 The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2023-39741 · CVE Program
- CVE-2023-39741 · NVD
- FIRST EPSS
- GHSA-rvm8-5gx5-v3wg · 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