PT-1998-1035 · Cisco · Cisco Ios

Published 1998-08-12 · Updated 2025-08-27 · CVE-1999-0159

Positive Technologies (AI Summary)

CVSS v3.1

3.5

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS versions 9.x through 11.x

Description The issue allows attackers to crash a Cisco IOS router or device if they can access an interactive prompt, such as a login.

Recommendations For versions 9.x through 11.x, update to a version that is not affected by this issue.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-1999-0159

Affected Products

Cisco Ios

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-1999-0159 · Security Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159 · Note
• https://t.me/cveNotify/133744 · Telegram Post