CVE-2026-59583 · Other
NO FIX YET
A flaw in the SIP authentication helper code (SipAuHelper.cpp, FormCredentials) lets a scheme downgrade expose authentication credentials in cleartext. An attacker on the network could read those credentials remotely, and no user interaction is needed.
first public Nov 10, 2026 · 1 source
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Who cares android, sip
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No fix yet, per the sources.
In FormCredentials of SipAuHelper.cpp, there is a possible way to disclose authentication credentials in cleartext via a scheme downgrade due to improper input validation. This could lead to remote information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
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