CVE-2018-15497
CVE-2018-15497 is a critical-severity vulnerability in Mitel Mivoice 5330e Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 5% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Mitel Mivoice 5330e Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2018-15497?
- 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.
- How severe is CVE-2018-15497?
- CVE-2018-15497 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-15497 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-15497?
- CVE-2018-15497 affects Mitel Mivoice 5330e Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-15497?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-15497 published?
- CVE-2018-15497 was published on 2018-10-23 and last updated on 2026-06-17.
References
- https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0009
- https://www.nccgroup.trust/uk/our-research/technical-advisory-mitel-mivoice-5330e-memory-corruption-flaw/
Affected products (1)
- cpe:2.3:o:mitel:mivoice_5330e_firmware:*:*:*:*:*:*:*:*
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