CVE-2014-4121
Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized resource identifiers, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized resource identifiers, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted request to a .NET web application, aka ".NET Framework Remote Code Execution Vulnerability."
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 19.23% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- microsoft/.net framework
- Source
- secure@microsoft.com
EPSS 19.2% 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.
References
- http://secunia.com/advisories/60969
- http://www.securityfocus.com/bid/70351
- http://www.securitytracker.com/id/1031021
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-057
- http://secunia.com/advisories/60969
- http://www.securityfocus.com/bid/70351
- http://www.securitytracker.com/id/1031021
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-057
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.