⚠ Actively exploited
Added to CISA KEV on 2022-03-03. Federal agencies required to patch by 2022-03-24. Required action: Apply updates per vendor instructions..
CVE-2017-6740 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Cisco IOS
Severity
8.8HIGHNVD
EPSS
29.2%
top 3.41%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-24
Exploit
Exploited in wild
Active exploitation observed
Affected products
Timeline
PublishedJul 17
KEV addedMar 3
KEV dueMar 24
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.
Description
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic directed to an affected system can be used to exploit these vulnerabilities.
The vulnerabilities are due t…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9