CVE-2026-58529
HighCVSS 7.1Exploitation Probability (EPSS)
Elevated risk57th percentile - higher than 57% of all known CVEs
Summary
An out-of-bounds read vulnerability in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.
Risk Assessment
The risk involves potential leakage of sensitive organizational data, such as authentication tokens or configuration, which could lead to further attacks.
Recommendation
It is recommended to immediately apply the security update provided by the vendor for AD FS and restrict network access to the service to trusted hosts only.
Other vulnerabilities in Active Directory Federation Services
See all- CVE-2026-97788High
Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.
- CVE-2026-96222High
A vulnerability in Active Directory Federation Services (AD FS) related to improper certificate validation allows an unauthorized attacker to perform spoofing over a network.
- CVE-2026-56155HighActively exploited
Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker to elevate privileges locally.
- CVE-2026-72978Medium
Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- CVE-2026-50647High
An infinite loop in Active Directory Federation Services (AD FS) allows an unauthorized attacker to remotely cause a denial of service (DoS).
- CVE-2026-50411High
A stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- CVE-2026-50368High
A stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.
- CVE-2026-50355High
A stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to remotely cause a denial of service (DoS).
- CVE-2026-50324Medium
An infinite loop in Active Directory Federation Services (AD FS) allows an unauthorized attacker to cause a denial of service over the network.
- CVE-2026-50304High
Stack-based buffer overflow in Active Directory Federation Services (ADFS) allows an unauthorized attacker to perform a DoS attack over the network.
Original NVD description (English source)
Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS