What’s Vulnerable › Vulnerabilities

CVE-2015-0769

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-06-12 · updated 2026-06-17
• Weakness: CWE-399

Description

Cisco IOS XR 4.0.1 through 4.2.0 for CRS-3 Carrier Routing System allows remote attackers to cause a denial of service (NPU ASIC scan and line-card reload) via crafted IPv6 extension headers, aka Bug ID CSCtx03546.

Affected products

• Cisco Ios Xr Software: 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.11, 4.1.0 (+4)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150611-iosxr
• http://www.securitytracker.com/id/1032563
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150611-iosxr
• http://www.securitytracker.com/id/1032563

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