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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
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JVN Vulnerability Information

Update Date":May 27, 2026, 6 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
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253091 7.8 危険 シスコシステムズ - Cisco IOS におけるサービス運用妨害 (デバイスリロード) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-0944 2011-11-8 10:20 2011-09-28 Show GitHub Exploit DB Packet Storm
253092 7.8 危険 シスコシステムズ - Cisco IOS および IOS XE におけるサービス運用妨害 (デバイスリロード) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-0939 2011-11-8 10:18 2011-09-28 Show GitHub Exploit DB Packet Storm
253093 7.8 危険 シスコシステムズ - Cisco IOS および IOS XE におけるサービス運用妨害 (DoS) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-3282 2011-11-7 16:39 2011-09-28 Show GitHub Exploit DB Packet Storm
253094 7.8 危険 シスコシステムズ - Cisco IOS における運用サービス妨害 (デバイスのリロードまたはハング) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-3281 2011-11-7 16:39 2011-09-28 Show GitHub Exploit DB Packet Storm
253095 7.8 危険 シスコシステムズ - Cisco IOS の NAT 実装におけるサービス運用妨害 (メモリ消費またはデバイスのリロード) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-3280 2011-11-7 16:38 2011-09-28 Show GitHub Exploit DB Packet Storm
253096 7.8 危険 シスコシステムズ - Cisco IOS の provider-edge MPLS NAT 実装におけるサービス運用妨害 (DoS) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-3279 2011-11-7 16:38 2011-09-28 Show GitHub Exploit DB Packet Storm
253097 7.8 危険 シスコシステムズ - Cisco IOS および IOS XE の NAT 実装におけるサービス運用妨害 (デバイスのリロード) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-3278 2011-11-7 16:37 2011-09-28 Show GitHub Exploit DB Packet Storm
253098 7.8 危険 シスコシステムズ - Cisco IOS の NAT 実装におけるサービス運用妨害 (デバイスのリロード) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-3277 2011-11-7 16:37 2011-09-28 Show GitHub Exploit DB Packet Storm
253099 7.8 危険 シスコシステムズ - Cisco IOS および IOS XE の NAT 機能におけるサービス運用妨害 (DoS) の脆弱性 CWE-noinfo
情報不足 		CVE-2011-3276 2011-11-7 16:36 2011-09-28 Show GitHub Exploit DB Packet Storm
253100 7.8 危険 シスコシステムズ - Cisco IOS および IOS XE におけるサービス運用妨害 (メモリ消費) の脆弱性 CWE-399
リソース管理の問題 		CVE-2011-3275 2011-11-7 16:36 2011-09-28 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 27, 2026, 4:52 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
202441 4.3 MEDIUM
Network 		cisco ios_xe A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient… CWE-20
 Improper Input Validation  		CVE-2020-3516 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202442 6.7 MEDIUM
Local 		cisco ios_xe Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 … CWE-94
Code Injection 		CVE-2020-3513 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202443 7.4 HIGH
Adjacent 		cisco ios_xe A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a … CWE-400
 Uncontrolled Resource Consumption 		CVE-2020-3512 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202444 7.4 HIGH
Adjacent 		cisco ios_xe A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial … CWE-20
 Improper Input Validation  		CVE-2020-3511 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202445 8.6 HIGH
Network 		cisco ios_xe A vulnerability in the Umbrella Connector component of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to trigger a reload, resulting in … CWE-400
 Uncontrolled Resource Consumption 		CVE-2020-3510 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202446 8.6 HIGH
Network 		cisco ios_xe A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, whic… CWE-203
 Information Exposure Through Discrepancy 		CVE-2020-3509 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202447 8.8 HIGH
Network 		cisco ios_xe Multiple vulnerabilities in the web management framework of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to elevate privileges to the level of an Admi… NVD-CWE-noinfo
CVE-2020-3425 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202448 7.4 HIGH
Adjacent 		cisco ios_xe A vulnerability in the IP Address Resolution Protocol (ARP) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers with a 20-Gbps Embedded Services Processor (ESP) in… CWE-400
 Uncontrolled Resource Consumption 		CVE-2020-3508 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202449 6.0 MEDIUM
Local 		cisco ios_xe A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vul… CWE-732
 Incorrect Permission Assignment for Critical Resource 		CVE-2020-3503 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm
202450 7.4 HIGH
Adjacent 		cisco ios_xe Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allo… CWE-20
 Improper Input Validation  		CVE-2020-3497 2024-11-21 14:31 2020-09-25 Show GitHub Exploit DB Packet Storm