CVE-2026-107590

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.8% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:L/U:Green

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-27.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-27 12:24Z2 DAYS AGO

Last updated

2026-10-27 12:24Z2 DAYS AGO

Reserved

2026-10-08

Assigning CNA

Qt

Record state

PUBLISHED

Severity

Low (CVSS 1.9)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

f23689fc1f72914e163f9d6279c64f19f1589d09fce8e03e69b40f91adea5cde

• wiki.qt.iohttps://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107590:vendor-advisory
• codereview.qt-project.orghttps://codereview.qt-project.org/c/qt/qt5compat/+/762752patch