CVE-2017-3865

Name: CVE-2017-3865
Creator: NVD / NIST
Published: 2017-07-04T00:29:00.18+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.20%

Last modified Jun 17, 2026

CVE-2017-3865 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.20% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.0

/10

EPSS Probability

2.20%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Staros	21.0.0
Cisco	Staros	21.0_m0.64246
Cisco	Staros	21.0_m0.64702

References

http://www.securityfocus.com/bid/99218Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038748Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-asrVendor Advisory
http://www.securityfocus.com/bid/99218Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038748Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-asrVendor Advisory

Timeline

Published: Jul 4, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-3865?

How severe is CVE-2017-3865?

Severity scoring for CVE-2017-3865 is pending analysis. The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.

How do I fix CVE-2017-3865?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-3865?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST