How severe is CVE-2015-2480?

CVE-2015-2480 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2015-2480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2480?

CVE-2015-2480 affects Microsoft .net Framework. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-2480?

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-2015-2480 published?

CVE-2015-2480 was published on 2015-08-15 and last updated on 2026-06-17.

CVE-2015-2480

CVE-2015-2480 is a critical-severity vulnerability in Microsoft .net Framework with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft .net Framework
Published: 2015-08-15
Last modified: 2026-06-17

Description

The RyuJIT compiler in Microsoft .NET Framework 4.6 produces incorrect code during an attempt at optimization, which allows remote attackers to execute arbitrary code via a crafted .NET application, aka "RyuJIT Optimization Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2479 and CVE-2015-2481.

Frequently asked questions

What is CVE-2015-2480?: The RyuJIT compiler in Microsoft .NET Framework 4.6 produces incorrect code during an attempt at optimization, which allows remote attackers to execute arbitrary code via a crafted .NET application, aka "RyuJIT Optimization Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2479 and CVE-2015-2481.
How severe is CVE-2015-2480?: CVE-2015-2480 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2015-2480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2480?: CVE-2015-2480 affects Microsoft .net Framework. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-2480?: 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-2015-2480 published?: CVE-2015-2480 was published on 2015-08-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*

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