CVE-1999-0159 | BDVDB-2026-0183 Detail

Description#

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact low. Attack vector: network.

Weaknesses#

CWE-400 Uncontrolled Resource Consumption

References#

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159

Exploit#

No public exploit known

History#

Version 11999-09-29Record published in the CVE List.
Version 22025-08-27Most recent update recorded in the CVE List.

Published

Published: 1999-09-29
Last modified: 2025-08-27

Vendor information

Vendor: Not stated
Product: Not stated

Score

3.5 Low

EPSS

1.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 65.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Denial of Service

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

3.5 Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).