CVE-2026-87676
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1.
Published Oct 8, 2026 · updated Oct 14, 2026 · Brocade Fabric OS
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI) extension before copying string tokens into an internal memory buffer. An authenticated user with administrative privileges to import custom certificates can supply a certificate containing an intentionally oversized AKI extension. When the system processes or renders the certificate attributes, this can trigger a stack memory corruption leading to a denial-of-service (DoS) condition by crashing the management daemon.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 8, 2026 · NIST NVD
Detected
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI) extension before copying string tokens into an internal memory buffer. An authenticated user with administrative privile
Oct 14, 2026 · NIST NVD
Updated
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI) extension before copying string tokens into an internal memory buffer. An authenticated user with administrative privile
Affected
- cpe broadcom/fabric operating systemversion unspecified
- vendor Brocade Fabric OSversion unspecified
Sources
- CIRCL Vulnerability LookupVulnerability recordCVE-2026-87676
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI)
vulnerability.circl.lu - CVE.orgVulnerability recordCVE-2026-87676
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-87676
30-day exploitation probability 0.1%
first.org - NIST NVDVulnerability recordCVE-2026-87676
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI)
nvd.nist.gov