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Fencer Vulns
high 7.2

CVE-2007-1321 json

Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a…

published 2007-10-30 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-1318

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 0.9.0-2

debian advisories DEBIAN-CVE-2007-1321

  • xen RHEL 5 VIRTUALIZATION, RHEL 5 3.0.3-25.0.4.el5
  • xen-libs RHEL 5 3.0.3-25.0.4.el5

red hat advisories RHSA-2007:0323

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-2007-1321 updated

xen QEMU NE2000 emulation issues

  • Red Hat Enterprise Linux (v. 5 server) xen 3.0.3-25.0.4.el5, xen-libs 3.0.3-25.0.4.el5 Red Hat Enterprise Linux Desktop (v. 5 client) xen 3.0.3-25.0.4.el5, xen-libs 3.0.3-25.0.4.el5 Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) xen 3.0.3-25.0.4.el5, xen-libs 3.0.3-25.0.4.el5 Red Hat Enterprise Linux Virtualization (v. 5 server) xen 3.0.3-25.0.4.el5, xen-libs 3.0.3-25.0.4.el5
    fixed: vendor fix RHSA-2007:0323

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

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

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.