# CVE-2018-0151

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.

- Page: https://www.vulneraibility.com/cve/CVE-2018-0151
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2022-03-03; CISA due date 2022-03-17
- EPSS: 14.20% (percentile 96.6)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2024-11-08)
- Weakness: CWE-119
- Published: 2018-03-28

## Affected versions

- Cisco IOS and IOS XE: affected Cisco IOS and IOS XE

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
- [other] http://www.securityfocus.com/bid/103540
- [other] http://www.securitytracker.com/id/1040582
- [other] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-qos
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0151

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.