CVE-2018-0949
A security feature bypass vulnerability exists when Microsoft Internet Explorer improperly handles requests involving UNC resources, aka "Internet Explorer Security Feature Bypass Vulnerability." This affects Internet Explorer 9, Internet Explorer 11,…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 12.0%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
A security feature bypass vulnerability exists when Microsoft Internet Explorer improperly handles requests involving UNC resources, aka "Internet Explorer Security Feature Bypass Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 12.03% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- microsoft/internet explorer
- Source
- secure@microsoft.com
EPSS moved from 9.3% on 21 September 2026 to 12.0% 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.securityfocus.com/bid/104622Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041258Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0949Patch, Vendor Advisory
- http://www.securityfocus.com/bid/104622Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041258Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0949Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.