What is the CVSS score of CVE-2018-15497?

CVE-2018-15497 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.9%.

Is there a public PoC exploit available for CVE-2018-15497?

Yes, a public proof-of-concept exploit is available for CVE-2018-15497. Prioritise patching immediately. EPSS: 4.9%.

Mivoice 5330E Firmware CVE-2018-15497

CRITICAL

Buffer Overflow (CWE-119)

2018-10-23 cve@mitre.org

Denial Of Service RCE Buffer Overflow Mivoice 5330E Firmware

9.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 23, 2018 - 21:30 nvd

CRITICAL 9.8

DescriptionNVD

The Mitel MiVoice 5330e VoIP device is affected by memory corruption flaws in the SIP/SDP packet handling functionality. An attacker can exploit this issue remotely, by sending a particular pattern of SIP/SDP packets, to cause a denial of service state in the affected devices and probably remote code execution.

AnalysisAI

The Mitel MiVoice 5330e VoIP device is affected by memory corruption flaws in the SIP/SDP packet handling functionality. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. The Mitel MiVoice 5330e VoIP device is affected by memory corruption flaws in the SIP/SDP packet handling functionality. An attacker can exploit this issue remotely, by sending a particular pattern of SIP/SDP packets, to cause a denial of service state in the affected devices and probably remote code execution. Affected products include: Mitel Mivoice 5330E Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.