CVE-2015-4273 — The Packet Data Network Gateway (aka PGW) component on Cisco ASR 5000 devices with software 15.0(912), 15.0(935), and 15.0(938) allows remote attackers to cause a denial of service (Session Manager outage) via malformed fields in an IP packet, aka Bug ID CSCut38476

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MEDIUM

The Packet Data Network Gateway (aka PGW) component on Cisco ASR 5000 devices with software 15.0(912), 15.0(935), and 15.0(938) allows remote attackers to cause a denial of service (Session Manager outage) via malformed fields in an IP packet, aka Bug ID CSCut38476

Published Jul 15, 2015

5.0

MEDIUM

CVSS 2.0

EPSS 1.99%

Description

The Packet Data Network Gateway (aka PGW) component on Cisco ASR 5000 devices with software 15.0(912), 15.0(935), and 15.0(938) allows remote attackers to cause a denial of service (Session Manager outage) via malformed fields in an IP packet, aka Bug ID CSCut38476.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.99% 0.01988

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

EPSS probability 0.01988

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	1.99% (0.01988)	79.87th	v5 (v2026.06.15)
Jun 15, 2026	1.99% (0.01988)	77.96th	v5 (v2026.06.15)
Mar 17, 2025	1.05% (0.01046)	75.97th	v4 (v2025.03.14)
Dec 12, 2024	0.13% (0.00133)	50.08th	v3 (v2023.03.01)
Jun 14, 2024	0.13% (0.00133)	48.62th	v3 (v2023.03.01)
Mar 7, 2023	0.13% (0.00133)	46.60th	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 (2)

http://tools.cisco.com/security/center/viewAlert.x?alertId=39907
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032928
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/viewAlert.x?alertId=39907		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032928		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Jul 15, 2015

Updated Aug 6, 2024

Reserved Jun 4, 2015

Link CVE-2015-4273

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-4273

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-4273