Cisco addressed high-severity flaws in IOS and IOS XE software
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2024-20259 | A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unex A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a crafted IPv4 DHCP request packet being mishandled when endpoint analytics are enabled. An attacker could exploit this vulnerability by sending a crafted DHCP request through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: The attack vector is listed as network because a DHCP relay anywhere on the network could allow exploits from networks other than the adjacent one. NVD description · AI analysis pending | 8.6 group max | <1% |
| — | ||
| CVE-2024-20308 | A vulnerability in the IKEv1 fragmentation code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a heap A vulnerability in the IKEv1 fragmentation code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a heap underflow, resulting in an affected device reloading. This vulnerability exists because crafted, fragmented IKEv1 packets are not properly reassembled. An attacker could exploit this vulnerability by sending crafted UDP packets to an affected system. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Note: Only traffic that is directed to the affected system can be used to exploit this vulnerability. This vulnerability can be triggered by IPv4 and IPv6 traffic.. NVD description · AI analysis pending | 7.5 | <1% |
| — |
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Cisco addressed multiple vulnerabilities in IOS and IOS XE software that can be exploited to trigger a denial-of-service (DoS) condition.
Cisco this week released patches to address multiple IOS and IOS XE software vulnerabilities. An unauthenticated attacker can exploit several issues fixed by the IT giant to cause a denial-of-service (DoS) condition.
Below are the most severe issues addressed by the company:
CVE-2024-20311 (CVSS score 8.6) – A vulnerability in the Locator ID Separation Protocol (LISP) feature of Cisco IOS Software and Cisco IOS XE Software. An unauthenticated, remote attacker can trigger the flaw to cause an affected device to reload.
CVE-2024-20314 (CVSS score 8.6) – A vulnerability in the IPv4 Software-Defined Access (SD-Access) fabric edge node feature of Cisco IOS XE Software. An unauthenticated, remote attacker can trigger the flaw to cause high CPU utilization and stop all traffic processing, resulting in a denial of service (DoS) condition on an affected device.
CVE-2024-20307 – CVE-2024-20308 (CVSS score 8.6) – Multiple vulnerabilities in the Internet Key Exchange version 1 (IKEv1) fragmentation feature of Cisco IOS Software and Cisco IOS XE Software. An attacker could allow an unauthenticated, remote attacker to cause a heap overflow or corruption on an affected system.
CVE-2024-20259 (CVSS score 8.6) – A vulnerability in the DHCP snooping feature of Cisco IOS XE Software. An unauthenticated, remote attacker can trigger the flaw to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.
CVE-2024-20303 (CVSS score 7.4) – A vulnerability in the multicast DNS (mDNS) gateway feature of IOS XE Software for Wireless LAN Controllers (WLCs). An unauthenticated, adjacent attacker can trigger the flaw to cause a denial of service (DoS) condition.
The company also addressed other high and medium-severity vulnerabilities in Access Point Software, Catalyst Center, and Aironet Access Point Software.
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