CVE-2026-42968: Windows Telephony Server Information Disclosure Vulnerability
Out-of-bounds read in Windows Telephony Service allows an authorized attacker to disclose information locally.
CSIRTS triage
- What
- An out-of-bounds read in Windows Telephony Service allows an authorized attacker to disclose information locally.
- Who is affected
- Users of Windows Telephony Service are affected.
- Urgency
- Medium urgency due to the potential for information disclosure, though no active exploitation is reported.
- Action
- Apply patches as they become available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42968
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-429680.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-42968 | coverage & exploitation status | NVD · CVE.org |
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