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Fencer Vulns
medium 4.3

CVE-2007-0998 json

The VNC server implementation in QEMU, as used by Xen and possibly other environments, allows local users of a guest operating system to re…

published 2007-03-20 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-0992

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

The VNC server implementation in QEMU, as used by Xen and possibly other environments, allows local users of a guest operating system to read arbitrary files on the host operating system via unspecified vectors related to QEMU monitor mode, as demonstrated by mapping files to a CDROM device. NOTE: some of these details are obtained from third party information.

Patch / fix

  • xen RHEL 5 VIRTUALIZATION, RHEL 5 3.0.3-25.0.3.el5
  • xen-libs RHEL 5 3.0.3-25.0.3.el5

red hat advisories RHSA-2007:0114

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-2007-0998 updated

HVM guest VNC server allows compromise of entire host OS by any VNC console user

  • Red Hat Enterprise Linux (v. 5 server) xen 3.0.3-25.0.3.el5, xen-libs 3.0.3-25.0.3.el5 Red Hat Enterprise Linux Desktop (v. 5 client) xen 3.0.3-25.0.3.el5, xen-libs 3.0.3-25.0.3.el5 Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) xen 3.0.3-25.0.3.el5, xen-libs 3.0.3-25.0.3.el5 Red Hat Enterprise Linux Virtualization (v. 5 server) xen 3.0.3-25.0.3.el5, xen-libs 3.0.3-25.0.3.el5
    fixed: vendor fix RHSA-2007:0114

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

1.96% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.