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UK Cyber Defence
VulnerabilityModified

CVE-2017-6615

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE 3.16 could allow an authenticated, remote attacker to cause a denial of service (DoS) condition.

MEDIUM 6.3EPSS 1.68%

Does this matter?

Lower severity and a low EPSS score (1.68%). Track it; it rarely justifies an emergency change on its own.

Description

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE 3.16 could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a race condition that could occur when the affected software processes an SNMP read request that contains certain criteria for a specific object ID (OID) and an active crypto session is disconnected on an affected device. An attacker who can authenticate to an affected device could trigger this vulnerability by issuing an SNMP request for a specific OID on the device. A successful exploit will cause the device to restart due to an attempt to access an invalid memory region. The attacker does not control how or when crypto sessions are disconnected on the device. Cisco Bug IDs: CSCvb94392.

CVSS 3.0
6.3 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
1.68% probability · 77th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-399, CWE-125, CWE-362
Affected
cisco/ios xe
Source
psirt@cisco.com
EPSS trend
0%3%5%27 October 2026: 1.68%27 October 202627 October 2026

EPSS 1.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.