CVE-1999-1203
5.0 · MEDIUMMultilink PPP for ISDN dialup users in Ascend before 4.6 allows remote attackers to cause a denial of service via a spoofed endpoint identifier.
Overview
CVE-1999-1203 is a medium-severity vulnerability affecting ascend multilink_ppp_for_isdn. It was published on February 12, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
Multilink PPP for ISDN dialup users in Ascend before 4.6 allows remote attackers to cause a denial of service via a spoofed endpoint identifier.
Remediation
Check the references section for vendor advisories and patches from ascend. Update multilink_ppp_for_isdn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ascend | multilink_ppp_for_isdn | 0 | Affected |
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Frequently asked questions
What is CVE-1999-1203?
CVE-1999-1203 is a medium-severity vulnerability affecting ascend multilink_ppp_for_isdn. It was published on February 12, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
How severe is CVE-1999-1203?
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-1999-1203?
Check the references section for vendor advisories and patches from ascend. Update multilink_ppp_for_isdn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-1999-1203?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-1999-1203 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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