CVE-2007-0043
CVE-2007-0043 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 31% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 31% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Microsoft .net Framework
- Published:
- Last modified:
Description
The Just In Time (JIT) Compiler service in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows user-assisted remote attackers to execute arbitrary code via unspecified vectors involving an "unchecked buffer," probably a buffer overflow, aka ".NET JIT Compiler Vulnerability".
Frequently asked questions
- What is CVE-2007-0043?
- The Just In Time (JIT) Compiler service in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows user-assisted remote attackers to execute arbitrary code via unspecified vectors involving an "unchecked buffer," probably a buffer overflow, aka ".NET JIT Compiler Vulnerability".
- How severe is CVE-2007-0043?
- CVE-2007-0043 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2007-0043 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 31% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2007-0043?
- CVE-2007-0043 primarily affects Microsoft .net Framework. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2007-0043?
- 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-2007-0043 published?
- CVE-2007-0043 was published on 2007-07-10 and last updated on 2026-06-16.
References
- http://archive.cert.uni-stuttgart.de/bugtraq/2007/07/msg00254.html
- http://osvdb.org/35956
- http://secunia.com/advisories/26003
- http://www.securityfocus.com/bid/24811
- http://www.securitytracker.com/id?1018356
- http://www.us-cert.gov/cas/techalerts/TA07-191A.html
- http://www.vupen.com/english/advisories/2007/2482
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-040
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34639
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1873
Affected products (3)
- cpe:2.3:a:microsoft:.net_framework:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:2.0:*:*:*:*:*:*:*
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