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CVE-2017-3865

A vulnerability in the IPsec component of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an unauthenticated, remote attacker…

Medium5.8EPSS 2.2%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in the IPsec component of Cisco StarOS for Cisco ASR 5000 Series Routers could allow an unauthenticated, remote attacker to terminate all active IPsec VPN tunnels and prevent new tunnels from establishing, resulting in a denial of service (DoS) condition. Affected Products: ASR 5000 Series Routers, Virtualized Packet Core (VPC) Software. More Information: CSCvc21129. Known Affected Releases: 21.1.0 21.1.M0.65601 21.1.v0. Known Fixed Releases: 21.2.A0.65754 21.1.b0.66164 21.1.V0.66014 21.1.R0.65759 21.1.M0.65749 21.1.0.66030 21.1.0.

Scores

CVSS scores of CVE-2017-3865, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium5.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
EPSS (exploitation in 30 days)
2.2% · top 17% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.

Weakness

  • IPsec VPN Tunnel Denial of Service Vulnerability

Affected products

  • Cisco StarOS for ASR 5000 Series Routers

    • affected Cisco StarOS for ASR 5000 Series Routers

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .