CVE-2018-8383
A spoofing vulnerability exists when Microsoft Edge does not properly parse HTTP content, aka "Microsoft Edge Spoofing Vulnerability." This affects Microsoft Edge.
Does this matter?
Lower severity and a low EPSS score (7.61%). Track it; it rarely justifies an emergency change on its own.
Description
A spoofing vulnerability exists when Microsoft Edge does not properly parse HTTP content, aka "Microsoft Edge Spoofing Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8388.
- CVSS 3.0
- 4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 7.61% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-290
- Affected
- microsoft/edge
- Source
- secure@microsoft.com
EPSS moved from 9.5% on 21 September 2026 to 7.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.openwall.com/lists/oss-security/2019/04/11/1
- http://www.securityfocus.com/bid/105024Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041457Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8383Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Apr/21
- http://www.openwall.com/lists/oss-security/2019/04/11/1
- http://www.securityfocus.com/bid/105024Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041457Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8383Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Apr/21
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.