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CVE-2015-0681

• Severity: high (CVSS 7.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-07-24 · updated 2026-06-17
• Weakness: CWE-399

Description

The TFTP server in Cisco IOS 12.2(44)SQ1, 12.2(33)XN1, 12.4(25e)JAM1, 12.4(25e)JAO5m, 12.4(23)JY, 15.0(2)ED1, 15.0(2)EY3, 15.1(3)SVF4a, and 15.2(2)JB1 and IOS XE 2.5.x, 2.6.x, 3.1.xS, 3.2.xS, 3.3.xS, 3.4.xS, and 3.5.xS before 3.6.0S; 3.1.xSG, 3.2.xSG, and 3.3.xSG before 3.4.0SG; 3.2.xSE before 3.3.0SE; 3.2.xXO before 3.3.0XO; 3.2.xSQ; 3.3.xSQ; and 3.4.xSQ allows remote attackers to cause a denial of service (device hang or reload) via multiple requests that trigger improper memory management, aka Bug ID CSCts66733.

Affected products

• Cisco IOS: 12.2(33)xn1, 12.2(44)sq1, 12.4(23)jy, 12.4(25e)jam1, 12.4(25e)jao5m, 15.0(2)ed1 (+3)
• Cisco IOS XE: 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2 (+47)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp/cvrf/cisco-sa-20150722-tftp_cvrf.xml
• http://www.securitytracker.com/id/1033023
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp/cvrf/cisco-sa-20150722-tftp_cvrf.xml
• http://www.securitytracker.com/id/1033023

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