How severe is CVE-2015-2319?

CVE-2015-2319 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2015-2319 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2319?

CVE-2015-2319 affects Mono-project Mono. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-2319?

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-2015-2319 published?

CVE-2015-2319 was published on 2018-01-08 and last updated on 2026-06-17.

CVE-2015-2319

CVE-2015-2319 is a high-severity vulnerability in Mono-project Mono 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Mono-project Mono
Published: 2018-01-08
Last modified: 2026-06-17

Description

The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.

Frequently asked questions

What is CVE-2015-2319?: The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.
How severe is CVE-2015-2319?: CVE-2015-2319 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2015-2319 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2319?: CVE-2015-2319 affects Mono-project Mono. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-2319?: 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-2015-2319 published?: CVE-2015-2319 was published on 2018-01-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mono-project:mono:*:*:*:*:*:*:*:*

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