CVE-2013-5545: n/a vulnerability

CVE-2013-5545: The PPTP ALG implementation in Cisco IOS XE 3.9 before 3.9.2S on 1000 ASR devices allows remote attackers t...

The PPTP ALG implementation in Cisco IOS XE 3.9 before 3.9.2S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) by sending many PPTP packets over NAT, aka Bug ID CSCuh19936.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 04:25 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw can make affected Cisco ASR 1000 routers reload, causing a denial of service. The issue is in Cisco IOS XE 3.9 before 3.9.2S when PPTP traffic is handled through NAT. It matters most where these older routers still support PPTP/NAT paths. Exposure is likely limited to Cisco ASR 1000 environments still running IOS XE 3.9 releases before 3.9.2S with PPTP over NAT in use or reachable. Treat this as a network availability risk for legacy Cisco edge or aggregation infrastructure. Prioritize if affected routers support customer, site, or VPN traffic where reloads would disrupt operations. Mitigation focus: Identify Cisco ASR 1000 devices running IOS XE 3.9 before 3.9.2S.; Upgrade affected devices to IOS XE 3.9.2S or vendor-recommended fixed software.; Review Cisco advisory cisco-sa-20131030-asr1000 for supported remediation details..

Prepared: Jun 14, 2026, 15:13 UTC (UTC+00:00)

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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 31, 2013, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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