Buffer overflow in Cisco iOS Xe Software
CVE-2024-20313
A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios Xe Software — versions 17.5.1, 17.5.1a, 17.6.1
- Cisco Ios_xe — versions 17.5.1, 17.5.1a, 17.6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-20313?
- CVE-2024-20313 is a high-severity vulnerability in Cisco iOS Xe Software, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.4/10. Published 2024-04-24.
- How severe is CVE-2024-20313?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2024-20313 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.