CVE-2018-8463
An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8469.
- CVSS 3.0
- 7.4 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
- EPSS
- 15.42% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 27 September 2018
- CISA KEV
- Not listed
- Affected
- microsoft/edge
- Source
- secure@microsoft.com
EPSS moved from 13.2% on 21 September 2026 to 15.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/105260Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041623Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8463Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45502/Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/105260Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041623Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8463Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45502/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.