The HTTP Alternative Services header, Alt-Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded. This vulnerability affects Firefox < 68.
Published 2019-07-23 14:15:17
Updated 2023-01-31 14:13:39
View at NVD,   CVE.org

Products affected by CVE-2019-11728

Exploit prediction scoring system (EPSS) score for CVE-2019-11728

0.24%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-11728

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST
4.7
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
2.8
1.4
NIST

CWE ids for CVE-2019-11728

References for CVE-2019-11728

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