CVE-2013-6694 - The IPSec implementation in Cisco IOS allows remote attackers to cause a denial of service (MTU change and tunnel-session drop) via crafted ICMP packets, aka Bug ID CSCul29918

Back Back to CVE browser

MEDIUM

The IPSec implementation in Cisco IOS allows remote attackers to cause a denial of service (MTU change and tunnel-session drop) via crafted ICMP packets, aka Bug ID CSCul29918

Published Nov 22, 2013

4.3

MEDIUM

CVSS 2.0

EPSS 1.08%

Description

The IPSec implementation in Cisco IOS allows remote attackers to cause a denial of service (MTU change and tunnel-session drop) via crafted ICMP packets, aka Bug ID CSCul29918.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.08% 0.01084

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.

EPSS probability 0.01084

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 4, 2026	1.08% (0.01084)	64.05th	v5 (v2026.06.15)
Jun 15, 2026	1.08% (0.01084)	60.75th	v5 (v2026.06.15)
Mar 17, 2025	0.44% (0.00443)	61.21th	v4 (v2025.03.14)
Dec 12, 2024	0.16% (0.00161)	54.06th	v3 (v2023.03.01)
Jun 9, 2024	0.17% (0.00165)	53.21th	v3 (v2023.03.01)
Mar 7, 2023	0.19% (0.00187)	54.31th	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-20

Improper Input Validation

References (1)

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6694
vendor-advisoryx_refsource_CISCOVendor Advisory

Link	Providers	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6694		vendor-advisoryx_refsource_CISCOVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Nov 22, 2013

Updated Aug 6, 2024

Reserved Nov 7, 2013

Link CVE-2013-6694

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2013-6694

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-6694