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Ubuntu Security NoticesUSN-8649-1

USN-8649-1: libheif vulnerabilities

It was discovered that libheif had an integer underflow in the Fraction constructor when a clap transform was applied twice. An attacker could possibly use this issue to cause libheif to crash, resulting in a denial of service. (CVE-2026-62289) It was discovered that libheif had an out-of-bounds read in uncompressed tile range slicing. An attacker could possibly use this issue to cause libheif to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-62292)

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Vulnerabilities

CVEs named in this advisory

CVE-2026-62289View CVSS, KEV, EPSS, and threat contextCVE-2026-62292View CVSS, KEV, EPSS, and threat context
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