CVE-2015-0776 — telnetd in Cisco IOS XR 5.0.1 on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (device reload) via a malformed TELNET packet, aka Bug ID CSCuq31566

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MEDIUM

telnetd in Cisco IOS XR 5.0.1 on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (device reload) via a malformed TELNET packet, aka Bug ID CSCuq31566

Published Jun 12, 2015

5.0

MEDIUM

CVSS 2.0

EPSS 1.43%

Description

telnetd in Cisco IOS XR 5.0.1 on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (device reload) via a malformed TELNET packet, aka Bug ID CSCuq31566.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.43% 0.01428

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

EPSS probability 0.01428

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	1.43% (0.01428)	72.02th	v5 (v2026.06.15)
Jun 15, 2026	1.46% (0.01456)	69.98th	v5 (v2026.06.15)
Mar 17, 2025	0.46% (0.00456)	61.80th	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-399

References (2)

http://tools.cisco.com/security/center/viewAlert.x?alertId=39293
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032560
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/viewAlert.x?alertId=39293		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032560		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Jun 12, 2015

Updated Aug 6, 2024

Reserved Jan 7, 2015

Link CVE-2015-0776

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-0776

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-0776