CVE-2023-20540CWE-208

An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code…

Low · published June 26, 2026

CVSS v4.0
1.8
EPSS
0%
Percentile
4.1
In the wild
Unconfirmed
What it is

An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code, allowing arbitrary message input, potentially leading to a loss of data integrity.

The record
Technical detail
CVSS v4.0
1.8 · LOW
Vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00153 · 4.1th percentile
Weakness
CWE-208 · Observable Timing Discrepancy
Published
2026-06-26T15:44Z
EPSS history
Timeline
  • 26 JUN 15:44Z
    An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code…
    cvelistv5