CVE-2026-89665High· 7.0▾ TwilightA flaw was found in the Linux kernel's nfsd component. A remote attacker could exploit this vulnerability by sending a specially crafted NFSv2 SETATTR or CREATE request with an out-of-range 'useconds' value. This could lead to incorrect ti…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · 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%
— → 6.8
none → medium
— → 6.8
none → medium
— → 8.2
none → high
8.2 → 6.8
high → medium
6.8 → 8.2
medium → high
Last analysed / modified upstream
0.2% → 0.6%
8.2 → 7
A flaw was found in the Linux kernel's nfsd component. A remote attacker could exploit this vulnerability by sending a specially crafted NFSv2 SETATTR or CREATE request with an out-of-range 'useconds' value. This could lead to incorrect timestamps being written to the filesystem, resulting in data corruption. Additionally, such malformed requests may cause a Denial of Service (DoS) by triggering an RPC GARBAGE_ARGS reply.
kernel: nfsd: reject out-of-range useconds in NFSv2 SETATTR/CREATE — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-15.
Affected:
No fix planned:
Not affected:
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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