CVE-2020-0833 json
Out-of-bounds write in ChakraCore
published 6y ago modified 4mo ago also GHSA-86gw-g9jv-8vfg , EUVD-2021-1449
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.7%
- EPSS 8.7% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0823, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0830, CVE-2020-0831, CVE-2020-0832, CVE-2020-0848.
Patch / fix
- nuget Microsoft.ChakraCore 1.11.17
Is CVE-2020-0833 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
8.68% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.6 | AV:N/AC:H/Au:N/C:C/I:C/A:C |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Microsoft.ChakraCore | <1.11.17 |
1.11.17 |
Affected products
- Microsoft Internet Explorer 11
- Microsoft Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems
- Microsoft Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems
- Microsoft Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems
- Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
- Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
- Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
- Microsoft Internet Explorer 11 on Windows Server 2012
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2020-0833
web, patch, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-0833
advisory
Sources
- CVE List CVE-2020-0833
- GitHub Advisory GHSA-86gw-g9jv-8vfg
- NVD CVE-2020-0833
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.