CVE-2015-0688 — Cisco IOS XE 3.10.2S on an ASR 1000 device with an Embedded Services Processor (ESP) module, when NAT is enabled, allows remote attackers to cause a denial of service (module crash) via malformed H.323 packets, aka Bug ID CSCup21070

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HIGH

Cisco IOS XE 3.10.2S on an ASR 1000 device with an Embedded Services Processor (ESP) module, when NAT is enabled, allows remote attackers to cause a denial of service (module crash) via malformed H.323 packets, aka Bug ID CSCup21070

Published Apr 4, 2015

7.1

HIGH

CVSS 2.0

EPSS 1.67%

Description

Cisco IOS XE 3.10.2S on an ASR 1000 device with an Embedded Services Processor (ESP) module, when NAT is enabled, allows remote attackers to cause a denial of service (module crash) via malformed H.323 packets, aka Bug ID CSCup21070.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.67% 0.01667

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

EPSS probability 0.01667

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	1.67% (0.01667)	75.90th	v5 (v2026.06.15)
Jun 15, 2026	1.68% (0.01679)	73.82th	v5 (v2026.06.15)
Mar 17, 2025	0.90% (0.00901)	74.05th	v4 (v2025.03.14)
Dec 12, 2024	0.19% (0.00186)	57.24th	v3 (v2023.03.01)
Jul 10, 2024	0.19% (0.00186)	56.24th	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-399

References (2)

http://tools.cisco.com/security/center/viewAlert.x?alertId=38210
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032023
vdb-entryx_refsource_SECTRACK

Link	Providers	Tags
http://tools.cisco.com/security/center/viewAlert.x?alertId=38210		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032023		vdb-entryx_refsource_SECTRACK

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Apr 4, 2015

Updated Aug 6, 2024

Reserved Jan 7, 2015

Link CVE-2015-0688

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-0688

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-0688