What’s Vulnerable › Vulnerabilities

CVE-2021-33453

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-26 · updated 2026-06-17
• Weakness: CWE-416

Description

An issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.

Affected products

• Long Range Zip Project Long Range Zip: 0.641

References

• https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
• https://github.com/ckolivas/lrzip/issues/199
• https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
• https://github.com/ckolivas/lrzip/issues/199

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