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Fencer Vulns
high 7.0

CVE-2009-1143 json

An issue was discovered in open-vm-tools 2009.03.18-154848.

published 2022-11-23 3 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1144

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

An issue was discovered in open-vm-tools 2009.03.18-154848. Local users can bypass intended access restrictions on mounting shares via a symlink attack that leverages a realpath race condition in mount.vmhgfs (aka hgfsmounter).

Patch / fix

  • open-vm-tools Debian 14, Debian 13, Debian 12 2:12.0.0-1

debian advisories DEBIAN-CVE-2009-1143

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-2009-1143 updated cvss 7.0

open-vm-tools: access bypass due to realpath race condition in mount.vmhgfs (aka hgfsmounter)

  • Red Hat Enterprise Linux 7 open-vm-tools, open-vm-tools-test, open-vm-tools-desktop
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 open-vm-tools, open-vm-tools-sdmp, open-vm-tools-desktop, open-vm-tools-salt-minion
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux 9 open-vm-tools, open-vm-tools-sdmp, open-vm-tools-test, open-vm-tools-desktop, open-vm-tools-salt-minion
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

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.