CVE-2026-45503
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
CSIRTS triage
- What
- Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
- Who is affected
- Authorized users of Microsoft Exchange Server are affected.
- Urgency
- Remediation is urgent due to the high severity and potential for information disclosure.
- Action
- Apply the latest security updates from Microsoft.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2026-45503: Microsoft Exchange Server Information Disclosure Vulnerabilitymsrc · 2026-06-09
External references
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