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Fencer Vulns
medium 6.7

CVE-2022-30787 json

An integer underflow in fuse_lib_readdir enables arbitrary memory read operations in NTFS-3G through 2021.8.22 when using libfuse-lite.

published 2022-05-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52610

cvss
6.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

An integer underflow in fuse_lib_readdir enables arbitrary memory read operations in NTFS-3G through 2021.8.22 when using libfuse-lite.

Patch / fix

  • ntfs-3g Debian 14, Debian 13, Debian 12 1:2022.5.17-1

debian advisories DEBIAN-CVE-2022-30787

  • ntfs-3g Ubuntu 18.04 LTS 1:2017.3.23-2ubuntu0.18.04.4
  • ntfs-3g Ubuntu 20.04 LTS 1:2017.3.23AR.3-3ubuntu1.2
  • ntfs-3g Ubuntu 22.04 LTS 1:2021.8.22-3ubuntu1.1
  • ntfs-3g Ubuntu Pro 14.04 LTS 1:2013.1.13AR.1-2ubuntu2+esm3
  • ntfs-3g Ubuntu Pro 16.04 LTS 1:2015.3.14AR.1-1ubuntu0.3+esm3

ubuntu advisories UBUNTU-CVE-2022-30787

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ntfs-3g_ntfsprogs SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 2022.5.17-5.12.1
  • ntfs-3g_ntfsprogs SLE Workstation Extension 15 SP4, SLE Workstation Extension 15 SP3, openSUSE Leap 15.4 +1 more 2022.5.17-150000.3.11.1

suse advisories SUSE-SU-2022:2836-1SUSE-SU-2022:2835-1

  • ntfs-3g Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 2022.5.17-r0

alpine advisories ALPINE-CVE-2022-30787

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ntfs-3g CBL-Mariner 2.0 2022.5.17-1

azure linux advisories AZL-9859

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-30787 updated cvss 6.7

ntfs-3g: integer underflow in fuse_lib_readdir enables arbitrary memory read operations

  • Red Hat Enterprise Linux 7 libguestfs-winsupport
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 libguestfs-winsupport Red Hat Enterprise Linux 8 Advanced Virtualization libguestfs-winsupport Red Hat Enterprise Linux 9 libguestfs-winsupport
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.