What is CVE-2015-5745?

CVE-2015-5745 is a medium-severity vulnerability in Arista Eos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2020-01-23.

How severe is CVE-2015-5745?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Arista Eos

CVE-2015-5745

Buffer overflow in the send_control_msg function in hw/char/virtio-serial-bus.c in QEMU before 2.4.0 allows guest users to cause a denial of service (QEMU process crash) via a crafted virtio control message.

Vulnerability class: Buffer Overflow

Published 2020-01-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.030 (86.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Arista Eos — versions 4.12, 4.13, 4.14
Qemu — versions before 2.4.0
Fedoraproject Fedora — versions 21, 22, 23

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html (Mailing List, Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html (Mailing List, Third Party Advisory)
lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html (Mailing List, Third Party Advisory)
lists.gnu.org/archive/html/qemu-devel/2015-07/msg05458.html (Patch, Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2015/08/06/3 (Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2015/08/06/5 (Exploit, Mailing List, Third Party Advisory)
github.com/qemu/qemu/commit/7882080388be5088e72c425b02223c02e6cb4295 (Patch, Third Party Advisory)
www.arista.com/en/support/advisories-notices/security-advisories/1180-security-… (Third Party Advisory)

Frequently asked questions

What is CVE-2015-5745?: CVE-2015-5745 is a medium-severity vulnerability in Arista Eos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2020-01-23.
How severe is CVE-2015-5745?: Medium severity. CVSS v3 base score is 6.5 out of 10.