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Vulnerabilities CVE-2026-42494

CVE-2026-42494

None
Open
TLP:CLEAR

buffer overruns in libfsimage iso9660 handling

AI Analysis

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Description

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver derives several lengths directly from attacker-controlled on-disk fields without validating them: * The directory loop itself assumes a good record length. This is CVE-2026-42494. * The calculation of the System Use area may underflow. This is CVE-2026-42495. * The Rock Ridge extension loop assumes a good (inner) record length. This is CVE-2026-62423. * The Rock Ridge NM record processing assumes a good entry length. This is CVE-2026-62424. * The Rock Ridge CE record processing assumes a good size and offset. This is CVE-2026-62425.

Details

EPSS Score
0.11%

1.8th percentile

Confidence
90%
Published
Jul 28, 2026
Last Modified
Jul 28, 2026
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