CVSS 3.1 Score 5.3 of 10 (medium)


Published Oct 25, 2023
Updated: Jan 7, 2024
CWE ID 203


CVE-2023-5722 is a vulnerability that affects Firefox versions below 119. It allows an attacker to learn the size of an opaque response and the contents of a server-supplied Vary header through iterative requests. The vulnerability has a base severity rating of MEDIUM and a base score of 5.3 according to NVD@NIST. It requires no privileges and no user interaction, and it can be exploited over a network. The impact on confidentiality is rated as LOW, with no impact on integrity or availability. To remediate this vulnerability, organizations should update their Firefox browser to version 119 or higher to mitigate the risk of information exposure through discrepancy.

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