How severe is CVE-2015-9277?

CVE-2015-9277 has a CVSS 3.x base score of 9.1, 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 none.

Is CVE-2015-9277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9277?

CVE-2015-9277 affects Mailenable. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9277?

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-2015-9277 published?

CVE-2015-9277 was published on 2019-01-16 and last updated on 2026-06-17.

CVE-2015-9277

CVE-2015-9277 is a critical-severity vulnerability in Mailenable with a CVSS 3.x base score of 9.1. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 7.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Mailenable
Published: 2019-01-16
Last modified: 2026-06-17

Description

MailEnable before 8.60 allows Directory Traversal for reading the messages of other users, uploading files, and deleting files because "/../" and "/.. /" are mishandled.

Frequently asked questions

What is CVE-2015-9277?: MailEnable before 8.60 allows Directory Traversal for reading the messages of other users, uploading files, and deleting files because "/../" and "/.. /" are mishandled.
How severe is CVE-2015-9277?: CVE-2015-9277 has a CVSS 3.x base score of 9.1, 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 none.
Is CVE-2015-9277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9277?: CVE-2015-9277 affects Mailenable. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9277?: 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-2015-9277 published?: CVE-2015-9277 was published on 2019-01-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mailenable:mailenable:*:*:*:*:*:*:*:*

More vulnerabilities in Mailenable

CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
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CVE-2022-42136 — High (CVSS 8.8): Authenticated mail users, under specific circumstances, could add files with unsanitized content in public folders…
CVE-2019-12926 — High (CVSS 8.8): MailEnable Enterprise Premium 10.23 did not use appropriate access control checks in a number of areas. As a result, it…

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