CVE-2026-62903 — Microsoft
HIGHCVE-2026-62903 is a high-severity (CVSS 7.4) CWE-294 vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Description
Authentication bypass by capture-replay in SQL Server allows an unauthorized attacker to disclose information over a network.
Detection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
The records we use list no fixed release for CVE-2026-62903. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Frequently Asked Questions
Is CVE-2026-62903 in your dependencies?
Find it across your dependency tree, including transitive dependencies.