PT-2026-30247 · Undefined · Undefined

CVE-2018-25237 · Published 2026-04-03 · Updated 2026-07-21

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Hirschmann HiSecOS versions prior to 05.3.03

Description A buffer overflow occurs in the HTTPS login interface when RADIUS authentication is enabled. This issue stems from improper bounds checking during password handling, where submitting a password exceeding 128 characters can overflow a fixed-size buffer. This may allow a remote attacker to cause a denial of service by crashing the device or to achieve remote code execution.

Recommendations Update to version 05.3.03 or later.

Fix

DoS

RCE

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2018-25237

Affected Products

Undefined

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2018-25237 · Security Note
• https://vulncheck.com/advisories/hirschmann-hisecos-buffer-overflow-via-https-login · Note
• https://assets.belden.com/m/2d5657b3e5d721c6/original/Security-Bulletin-RADIUS-Authentication-BSECV-2018-04.pdf · Note
• https://t.me/cveNotify/208449 · Telegram Post