Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2020-28361

Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 39.2%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 5.5
Products affected by CVE-2020-28361


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