NULL pointer dereference in Cisco 1000 Integrated Services Router
CVE-2019-12654
A vulnerability in the common Session Initiation Protocol (SIP) library of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on an internal data structure. An attacker could exploit this vulnerability by sending a sequence of malicious SIP messages to an affected device. An exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the iosd process. This triggers a reload of the device.
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: 0.020 (80.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Cisco 1000 Integrated Services Router
- Cisco 1100 Integrated Services Router
- Cisco 4000 Integrated Services Router
- Cisco 4221 Integrated Services Router
- Cisco 4321 Integrated Services Router
- Cisco 4331 Integrated Services Router
- Cisco 4351 Integrated Services Router
- Cisco 4431 Integrated Services Router
- Cisco 4451-X Integrated Services Router
- Cisco Asr 1000
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-12654?
- CVE-2019-12654 is a high-severity vulnerability in Cisco 1000 Integrated Services Router, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-09-25.
- How severe is CVE-2019-12654?
- High severity. CVSS v3 base score is 7.5 out of 10.