CVE-2026-70031
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk66th percentile - higher than 66% of all known CVEs
Summary
Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to cause denial of service over a network.
Risk Assessment
The attack can disrupt iSCSI services, potentially affecting availability of systems relying on this technology.
Recommendation
Apply security updates provided by the Windows vendor.
Other vulnerabilities in Windows iSCSI
See all- CVE-2026-69883Critical
Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.
- CVE-2026-69705Critical
Out-of-bounds write in Windows iSCSI allows an unauthorized attacker to execute code over a network.
- CVE-2026-69634Critical
Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a network.
- CVE-2026-73025Critical
Weak authentication in Windows iSCSI allows an unauthorized attacker to bypass a security feature over a network.
- CVE-2026-70095High
Heap-based buffer overflow in Windows iSCSI. An unauthorized attacker can execute code over a network.
- CVE-2026-70038High
A use after free vulnerability exists in Windows iSCSI. An unauthorized attacker can exploit this flaw to execute code over a network.
- CVE-2026-70013High
Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.
- CVE-2026-69721Medium
An out-of-bounds read vulnerability in Windows iSCSI allows an authorized attacker to disclose information locally.
- CVE-2026-69644Medium
Exposure of sensitive system information to an unauthorized control sphere in Windows iSCSI allows an authorized attacker to disclose information locally.
- CVE-2026-69521High
Integer overflow or wraparound in Windows iSCSI allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

