CVE-2025-20312High· 7.7▾ TwilightA vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability i…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.4 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 17.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
0.4% → 0.4%
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to improper error handling when parsing a specific SNMP request. An attacker could exploit this vulnerability by sending a specific SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv2c or earlier, the attacker must know a valid read-write or read-only SNMP community string for the affected system. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system.
ios_xe = 17.2.1ios_xe = 17.2.1aios_xe = 17.2.1rios_xe = 17.2.1vios_xe = 17.2.2ios_xe = 17.2.3ios_xe = 17.3.1ios_xe = 17.3.1aios_xe = 17.3.1wios_xe = 17.3.1xios_xe = 17.3.1zios_xe = 17.3.2ios_xe = 17.3.2aios_xe = 17.3.3ios_xe = 17.3.4ios_xe = 17.3.4aios_xe = 17.3.4bios_xe = 17.3.4cios_xe = 17.3.5ios_xe = 17.3.5aios_xe = 17.3.5bios_xe = 17.3.6ios_xe = 17.3.7ios_xe = 17.3.8ios_xe = 17.3.8aios_xe = 17.4.1ios_xe = 17.4.1aios_xe = 17.4.1bios_xe = 17.4.2ios_xe = 17.4.2aios_xe = 17.5.1ios_xe = 17.5.1aios_xe = 17.6.1ios_xe = 17.6.1aios_xe = 17.6.1wios_xe = 17.6.1xios_xe = 17.6.1yios_xe = 17.6.1zios_xe = 17.6.1z1ios_xe = 17.6.2ios_xe = 17.6.3ios_xe = 17.6.3aios_xe = 17.6.4ios_xe = 17.6.5ios_xe = 17.6.5aios_xe = 17.6.6ios_xe = 17.6.6aios_xe = 17.6.7ios_xe = 17.6.8ios_xe = 17.6.8aios_xe = 17.7.1ios_xe = 17.7.1aios_xe = 17.7.1bios_xe = 17.7.2ios_xe = 17.8.1ios_xe = 17.8.1aios_xe = 17.9.1ios_xe = 17.9.1aios_xe = 17.9.1wios_xe = 17.9.1xios_xe = 17.9.1x1ios_xe = 17.9.1yios_xe = 17.9.1y1ios_xe = 17.9.2ios_xe = 17.9.2aios_xe = 17.9.3ios_xe = 17.9.3aios_xe = 17.9.4ios_xe = 17.9.4aios_xe = 17.9.5ios_xe = 17.9.5aios_xe = 17.9.5bios_xe = 17.9.5eios_xe = 17.9.5fios_xe = 17.9.6ios_xe = 17.9.6aios_xe = 17.9.7ios_xe = 17.9.7aios_xe = 17.9.7bios_xe = 17.10.1ios_xe = 17.10.1aios_xe = 17.10.1bios_xe = 17.11.1ios_xe = 17.11.1aios_xe = 17.12.1ios_xe = 17.12.1aios_xe = 17.12.1wios_xe = 17.12.1xios_xe = 17.12.1yios_xe = 17.12.1zios_xe = 17.12.1z1ios_xe = 17.12.1z2ios_xe = 17.12.1z3ios_xe = 17.12.1z4ios_xe = 17.12.2ios_xe = 17.12.2aios_xe = 17.12.3ios_xe = 17.12.3aios_xe = 17.12.4ios_xe = 17.12.4aRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-20019Medium· 5.8Multiple Cisco Products Snort 3 Netflow Denial of Service Vulnerabilities
CVE-2026-76445Medium· 5.3Multiple Cisco Products Snort 3 Denial of Service Vulnerability
CVE-2021-1432High· 7.3A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user
CVE-2026-20263High· 8.6A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability …
CVE-2026-20084High· 8.6A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs, resulting in a denial of service (DoS) condition
CVE-2026-20104Medium· 6.1A vulnerability in the bootloader of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches, Cisco Catalyst ESS9300 Embedded Series Switches, Cisco Catalyst IE9310 and IE9320 Rugged Series Switches, and Cisco IE3500 and IE3505 Rug…