CVE-2026-89525Medium· 5.5▾ SunlitA flaw was found in the Linux kernel. A local attacker could craft a malicious Universal Disk Format (UDF) image to trigger an out-of-bounds read vulnerability in the `udf_get_pblock_virt15()` function. This occurs when the system attempts…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4
none → medium
— → 4
none → medium
Last analysed / modified upstream
0.2% → 0.2%
— → 5.5
none → medium
A flaw was found in the Linux kernel. A local attacker could craft a malicious Universal Disk Format (UDF) image to trigger an out-of-bounds read vulnerability in the udf_get_pblock_virt15() function. This occurs when the system attempts to read a Virtual Allocation Table (VAT) index equal to the entry count, bypassing a bounds check. This can lead to reading memory beyond the allocated table, potentially causing a kernel panic and a denial of service.
kernel: udf: reject VAT indexes equal to the entry count — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-15.
Affected:
No fix planned:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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