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Unrated severityNVD Advisory· Published Jul 12, 2001· Updated Jun 16, 2026

CVE-2001-1183

CVE-2001-1183

Description

PPTP implementation in Cisco IOS 12.1 and 12.2 allows remote attackers to cause a denial of service (crash) via a malformed packet.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

14

Cisco Systems, Inc./Cisco iOS14 versions
cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:*+ 13 more
- cpe:2.3:o:cisco:ios:12.1e:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.1ez:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.1t:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.1ya:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.1yc:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.1yd:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2t:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xa:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xd:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xe:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xh:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:12.2xq:*:*:*:*:*:*:*
- (no CPE)range: 12.1, 12.2

Patches

Vulnerability mechanics

References

5

www.cisco.com/warp/public/707/PPTP-vulnerability-pub.htmlnvdPatchVendor Advisory
www.kb.cert.org/vuls/id/656315nvdPatchThird Party AdvisoryUS Government Resource
www.securityfocus.com/bid/3022nvdPatchVendor Advisory
www.osvdb.org/802nvd
exchange.xforce.ibmcloud.com/vulnerabilities/6835nvd

News mentions

0

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