The Microsoft (1) JScript 9, (2) VBScript, and (3) Chakra JavaScript engines, as used in…
Priority MEDIUM 64CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-119 and the CVSS impact.
Summary
The Microsoft (1) JScript 9, (2) VBScript, and (3) Chakra JavaScript engines, as used in Microsoft Internet Explorer 9 through 11, Microsoft Edge, and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-3248.
Why it matters now
EPSS 0.34792 98th percentileScored 2026-11-07
Fix Fixed Microsoft.ChakraCore (NuGet): 1.2.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | Microsoft.ChakraCore (NuGet) | before 1.2.0.0 | 1.2.0.0 | Patch available | GHSA-wm27-49x2-mg9q |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.2.0.0 Fixed in 1.2.0.0 Patch available GHSA-wm27-49x2-mg9q
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* | 9 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:* | 10 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:* | 11 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:* Versions 11 Vulnerable ·Microsoft
Remediation
- Fix · GHSA-wm27-49x2-mg9q Microsoft.ChakraCore (NuGet) Fixed in 1.2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2016-3259
- 2026-10-03 Alias added: GHSA-wm27-49x2-mg9q
References
Other 5
- https://github.com/chakra-core/ChakraCore/pull/1291
- https://github.com/chakra-core/ChakraCore/commit/17f3d4a4852dcc9e48de7091685b1862afb9f307
- https://github.com/chakra-core/ChakraCore
- https://web.archive.org/web/20210125172712/http://www.securityfocus.com/bid/91581
- https://web.archive.org/web/20211202003833/http://www.securitytracker.com/id/1036283
More Microsoft Edge vulnerabilities
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2022-03781 Out-of-bounds write in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2015-00277 Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through… KEVCVSS 3.1CRITICAL 9.8
- TI-2015-00275 Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2020-12621 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2016-3259 · CVE Program
- CVE-2016-3259 · NVD
- FIRST EPSS
- GHSA-wm27-49x2-mg9q · GitHub Advisory Database · CC BY 4.0
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