CVE-2026-95509CWE-125CWE-131

CVE-2026-95509

published September 29, 2026

CVSS
8.8
EPSS
0%
Percentile
22.8
In the wild
Unconfirmed
What it is

Strings optimized for Latin-1 displaying Latin-1 characters cause incorrect String.arg() formatting by an incorrect buffer size calculation, causing out-of-bounds reading.

The record
Technical detail
CVSS
8.8 · NONE
CVSS v4.0
8.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
EPSS
0.00312 · 22.8th percentile
Weaknesses
CWE-125 · Out-of-bounds Read; CWE-131 · Incorrect Calculation of Buffer Size
Published
2026-09-29T15:16Z
References (1)
EPSS history
Timeline
  • 01 OCT 03:50Z
    EPSS moved — → 0%
    epss
  • 29 SEP 10:40Z
    Out-of-bounds read vulnerability in string formatting impacts Qt for MCUs
    cvelistv5