Buffer overflow in Cisco Small Business Ip Phones
CVE-2024-20451
Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly. These vulnerabilities exist because HTTP packets are not properly checked for errors. An attacker could exploit this vulnerability by sending a crafted HTTP packet to the remote interface of an affected device. A successful exploit could allow the attacker to cause a DoS condition on the device.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Cisco Small Business Ip Phones — versions 7.6.0, 7.6.2, 7.6.2SR3
- Cisco Spa 301 1 Line Ip Phone
- Cisco Spa 301 Firmware
- Cisco Spa 303 3 Line Ip Phone
- Cisco Spa 303 Firmware
- Cisco Spa 501g 8-Line Ip Phone
- Cisco Spa 501g Firmware
- Cisco Spa 502g 1-Line Ip Phone
- Cisco Spa 502g Firmware
- Cisco Spa 504g 4-Line Ip Phone
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-20451?
- CVE-2024-20451 is a high-severity vulnerability in Cisco Small Business Ip Phones, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-08-07.
- How severe is CVE-2024-20451?
- High severity. CVSS v3 base score is 7.5 out of 10.