CVE-2012-3915 — The DMVPN tunnel implementation in Cisco IOS 15.2 allows remote attackers to cause a denial of service (persistent IKE state) via a large volume of hub-to-spoke traffic, aka Bug ID CSCtq39602

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MEDIUM

The DMVPN tunnel implementation in Cisco IOS 15.2 allows remote attackers to cause a denial of service (persistent IKE state) via a large volume of hub-to-spoke traffic, aka Bug ID CSCtq39602

Published Sep 16, 2012

5.0

MEDIUM

CVSS 2.0

EPSS 1.22%

Description

The DMVPN tunnel implementation in Cisco IOS 15.2 allows remote attackers to cause a denial of service (persistent IKE state) via a large volume of hub-to-spoke traffic, aka Bug ID CSCtq39602.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.22% 0.01218

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01218

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.22% (0.01218)	67.53th	v5 (v2026.06.15)
Jun 15, 2026	1.22% (0.01218)	64.57th	v5 (v2026.06.15)
Mar 17, 2025	0.47% (0.00474)	62.69th	v4 (v2025.03.14)
Dec 12, 2024	0.18% (0.00181)	56.68th	v3 (v2023.03.01)
Aug 7, 2023	0.18% (0.00181)	54.51th	v3 (v2023.03.01)
Mar 7, 2023	0.19% (0.00186)	54.19th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-119

Buffer Overflow

References (2)

http://www.cisco.com/en/US/docs/ios/15_2s/release/notes/15_2s_caveats_15_2_2s.html
x_refsource_CONFIRMVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78809
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.cisco.com/en/US/docs/ios/15_2s/release/notes/15_2s_caveats_15_2_2s.html		x_refsource_CONFIRMVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78809		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Sep 16, 2012

Updated Aug 6, 2024

Reserved Jul 10, 2012

Link CVE-2012-3915

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2012-3915

Red Hat

Severity n/a

Public date n/a

Links CVE-2012-3915