SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-2481

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…

HIGH 9.3EPSS 14.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 14.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

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-2015-2480.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
14.12% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-264
Affected
microsoft/.net framework
Source
secure@microsoft.com
EPSS trend
0%8%15%4 November 2026: 14.12%4 November 20264 November 2026

EPSS 14.1% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.