What’s Vulnerable › Vulnerabilities

CVE-2023-39741

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-17 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• Long Range Zip Project Long Range Zip: 0.651

References

• https://gist.github.com/huanglei3/ec9090096aa92445cf0a8baa8e929084
• https://github.com/ckolivas/lrzip/issues/246
• https://github.com/huanglei3/lrzip_poc/tree/main/lrzip_heap_overflow
• https://gist.github.com/huanglei3/ec9090096aa92445cf0a8baa8e929084
• https://github.com/ckolivas/lrzip/issues/246
• https://github.com/huanglei3/lrzip_poc/tree/main/lrzip_heap_overflow

Get alerted when CVE-2023-39741 or the next vulnerability affects your stack