Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSummary
CVE-2015-2419 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Internet Explorer. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2015-2419 is an out-of-bounds write vulnerability (CWE-787) in JScript 9 that affects Microsoft Internet Explorer 10 and 11. The flaw manifests as memory corruption when the scripting engine processes specially crafted web content, enabling either arbitrary code execution or a denial-of-service condition.
Remote attackers can exploit the issue by serving a malicious web page that triggers the corruption when rendered in a vulnerable browser instance. Because the attack requires only that a user visit the page, an unauthenticated adversary can achieve full control over the affected process or crash the browser, corresponding to the CVSS 8.8 rating that reflects network attack vector, low complexity, and high impact on confidentiality, integrity, and availability.
Microsoft addressed the vulnerability in security bulletin MS15-065, which supplies updated JScript 9 binaries for the affected IE versions. The bulletin and associated SecurityTracker entries emphasize applying the patches to eliminate the memory-safety defect.
The vulnerability appears in CISA’s Known Exploited Vulnerabilities catalog, confirming observed in-the-wild exploitation prior to and after the 2015 disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2015-2512
Vulnerability Data
JScript 9 in Microsoft Internet Explorer 10 and 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "JScript9 Memory Corruption Vulnerability."
- CWE(s)
- KEV Date Added
- 28 March 2022
Related Threats
MITRE ATT&CK Enterprise Techniques
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Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.
Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.
Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development and acceptance can detect and prevent out-of-bounds write defects.
Secure development life cycle mandates practices that prevent out-of-bounds writes.
Application security requirements can specify bounds-checking and safe memory handling.
Secure architecture and engineering principles reduce the likelihood of buffer overflows.
Secure coding directly addresses out-of-bounds writes through language choice and coding standards.
Change management can enforce review gates that catch unsafe memory operations before deployment.