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CVE-2015-3209

23
FAUCET Score

CVE-2015-3209 describes a critical heap-based buffer overflow in the PCNET controller within QEMU, impacting numerous products including Arista, Canonical, Debian, Fedora, Juniper, Red Hat, and SUSE. This vulnerability allows remote attackers to execute arbitrary code with high severity, as it requires no authentication and has low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. While the FAUCET Risk Score is high at 88/100 and its EPSS score indicates a higher-than-average exploitability probability, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
<= 15.1CPE matchmatch criteria
cpe:2.3:a:juniper:junos_space:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
14.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.67%
Probability of exploitation in next 30 days
EPSS Percentile
95.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0967 is in the 92nd percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (14)

redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: qemu-kvm-rhev-2:0.12.1.2-2.448.el6_6.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm-0:83-273.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qemu-kvm-2:0.12.1.2-2.448.el6_6.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed in: qemu-kvm-rhev-2:0.12.1.2-2.448.el6_6.4
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.9Fixed in: kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.6Fixed in: kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 6.4Fixed in: qemu-kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 6.5Fixed in: qemu-kvm
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 6.2Fixed in: qemu-kvm
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 4Fixed in: qemu-kvm-rhev
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.6Fixed in: xen
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.9Fixed in: xen

Vendor Advisories (1)

redhatCVE-2015-3209Important

qemu: pcnet: multi-tmd buffer overflow in the tx path

Jun 10, 2015

References

kb.juniper.net / InfoCenter/index
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-June/160669.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-June/160677.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-June/160685.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-06/msg00004.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-06/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-06/msg00027.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-06/msg00029.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-06/msg00030.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-07/msg00014.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-08/msg00020.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00015.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-09/msg00027.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2015-1087.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1088.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1089.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1189.html
Third Party Advisory
kb.juniper.net / JSA10783
Third Party Advisory
security.gentoo.org / glsa/201510-02
Third Party Advisory
security.gentoo.org / glsa/201604-03
Third Party Advisory
arista.com / en/support/advisories-notices/security-advisories/1180-security-advisory-13
Third Party Advisory
debian.org / security/2015/dsa-3284
Third Party Advisory
debian.org / security/2015/dsa-3285
Third Party Advisory
debian.org / security/2015/dsa-3286
Third Party Advisory
securityfocus.com / bid/75123
Third Party AdvisoryVDB Entry
securitytracker.com / id/1032545
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2630-1
Third Party Advisory
xenbits.xen.org / xsa/advisory-135.html
Third Party Advisory