How severe is CVE-2018-6635?

CVE-2018-6635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6635 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6635?

CVE-2018-6635 affects Avaya Aura. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6635?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-6635 published?

CVE-2018-6635 was published on 2018-02-05 and last updated on 2026-06-17.

CVE-2018-6635

CVE-2018-6635 is a high-severity vulnerability in Avaya Aura with a CVSS 3.x base score of 7.5. 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-326.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Avaya Aura
Published: 2018-02-05
Last modified: 2026-06-17

Description

System Manager in Avaya Aura before 7.1.2 does not properly use SSL in conjunction with authentication, which allows remote attackers to bypass intended Remote Method Invocation (RMI) restrictions, aka SMGR-26896.

Frequently asked questions

What is CVE-2018-6635?: System Manager in Avaya Aura before 7.1.2 does not properly use SSL in conjunction with authentication, which allows remote attackers to bypass intended Remote Method Invocation (RMI) restrictions, aka SMGR-26896.
How severe is CVE-2018-6635?: CVE-2018-6635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6635 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6635?: CVE-2018-6635 affects Avaya Aura. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6635?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6635 published?: CVE-2018-6635 was published on 2018-02-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:avaya:aura:*:*:*:*:*:*:*:*

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