SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-16845

hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.

CRITICAL 10.0EPSS 2.94%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.

CVSS 3.1
10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H
EPSS
2.94% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
qemu/qemu · debian/debian linux · canonical/ubuntu linux
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.94%27 October 202627 October 2026

EPSS 2.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.