CVE-2026-88840CWE-125

CVE-2026-88840

Medium · published September 23, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
10.0
In the wild
Unconfirmed
What it is

BusyBox TLS get_client_hello() reads past the end of the input buffer when parsing a truncated ClientHello message.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00205 · 10.0th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-23T22:17Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-88840 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2531354 · [email protected]
EPSS history
Timeline
  • 25 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 23 SEP 17:45Z
    Busybox: busybox: tls ssl_server reads one byte out of bounds when parsing truncated clienthello
    cvelistv5