What’s Vulnerable › Vulnerabilities
CVE-2026-71267: microtar Stack Buffer Overflow in mtar_write_file_header() and mtar_write_dir_header()
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-05 · updated 2026-10-24
- Weakness: CWE-121
Description
microtar's mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.
Affected products
- rxi microtar: all versions
References
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