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CVE-2015-8743

20
FAUCET Score

CVE-2015-8743 describes an out-of-bounds read/write vulnerability in QEMU's NE2000 device emulation, affecting Debian Linux and QEMU. A privileged user or process (CAP_SYS_RAWIO) can exploit this flaw to leak or corrupt QEMU memory bytes. With a CVSS v3.1 score of 7.1 (High), the vulnerability has a local attack vector with low complexity, posing a significant risk to confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 77th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed in: qemu-kvm-rhev

Vendor Advisories (1)

redhatCVE-2015-8743Low

Qemu: net: ne2000: OOB memory access in ioport r/w functions

Dec 30, 2015

References

bugzilla.redhat.com / show_bug.cgi
Issue Tracking
lists.gnu.org / archive/html/qemu-devel/2016-01/msg00050.html
PatchVendor Advisory
security.gentoo.org / glsa/201602-01
Third Party Advisory
debian.org / security/2016/dsa-3469
Third Party Advisory
debian.org / security/2016/dsa-3470
Third Party Advisory
debian.org / security/2016/dsa-3471
Third Party Advisory
openwall.com / lists/oss-security/2016/01/04/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/01/04/2
Mailing ListThird Party Advisory
securityfocus.com / bid/79820
Third Party AdvisoryVDB Entry
securitytracker.com / id/1034574
Third Party AdvisoryVDB Entry