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CVE-2021-4090

7.1 high Modified
NVD · CVE.org

An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.1 · linux, netappNVD modified 2026-10-14 11:16

Affected (CPE criteria) 11

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

References 8