CVE-2015-4243: n/a vulnerability

CVE-2015-4243: The PPPoE establishment implementation in Cisco IOS XE 3.5.0S on ASR 1000 devices allows remote attackers t...

The PPPoE establishment implementation in Cisco IOS XE 3.5.0S on ASR 1000 devices allows remote attackers to cause a denial of service (device reload) by sending malformed PPPoE Active Discovery Request (PADR) packets on the local network, aka Bug ID CSCty94202.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 06:11 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw can let an attacker on the local network crash certain Cisco ASR 1000 routers running IOS XE 3.5.0S during PPPoE session establishment. A crash and reload can interrupt connectivity, but the provided sources do not show code execution, data theft, or internet-wide exposure. Exposure appears limited to Cisco ASR 1000 deployments running IOS XE 3.5.0S with PPPoE reachable from a local network segment. The supplied affected-products metadata is incomplete, so inventory validation is required. Treat as a targeted availability risk for affected edge or aggregation routers. Prioritize if ASR 1000 devices support customer or business-critical PPPoE services; otherwise handle through normal network maintenance and vendor remediation tracking. Mitigation focus: Identify ASR 1000 routers running Cisco IOS XE 3.5.0S.; Review the Cisco advisory and Bug ID CSCty94202 for vendor-approved fixes.; Restrict PPPoE exposure to trusted local segments where operationally possible..

Prepared: Jun 13, 2026, 22:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 8, 2015, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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