CVE-1999-0159

LOW

3.5

CVSS Score

Published: September 29, 1999 at 04:00 AM UTC

Updated: June 16, 2026 at 09:47 PM UTC

1 product affected across 1 vendorIOS

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Severity

LOW3.5

Exploit prediction

EPSS 1%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IOS · Cisconpm

95%

11.0(20.3)11.1(15)ca 11.1(16)11.1(16)aa 11.1(16)ia 11.1(17)cc 11.1(17)ct 11.2(10)11.2(10)bc 11.2(8)sa3 11.2(9)p 11.2(9)xa 11.3(1)11.3(1)ed 11.3(1)t 9.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISC

Source: [email protected]

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.5LOWCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: LOW

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-OtherCWE-400

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