What is CVE-2026-54417?

CVE-2026-54417 is a high-severity vulnerability in Rxi Microtar, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-06-17.

How severe is CVE-2026-54417?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Rxi Microtar

CVE-2026-54417

An integer overflow in the mtar_next() function in src/microtar.c in rxi microtar 0.1.0 allows a remote attacker to cause a denial of service (uncontrolled CPU consumption / infinite loop) via a crafted tar archive. mtar_next() computes th…

Vulnerability class: Integer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Rxi Microtar — versions 0.1.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound
CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)

Frequently asked questions

What is CVE-2026-54417?: CVE-2026-54417 is a high-severity vulnerability in Rxi Microtar, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-06-17.
How severe is CVE-2026-54417?: High severity. CVSS v3 base score is 7.5 out of 10.