EUVD-2026-78770
GHSA-4h39-4chm-jm4p
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Session fixation needs the victim to log in (UI:R); attacker unauthenticated (PR:N) over network (AV:N); theft of an admin session yields C:H/I:H but no inherent availability loss (A:N).
Primary rating from Vendor (dell).
CVSS VectorVendor: dell
Lifecycle Timeline
3DescriptionCVE.org
Dell SmartFabric OS10 Software, versions prior to 10.6.1.3, contains a Session Fixation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Session theft.
AnalysisAI
Session fixation in Dell SmartFabric OS10 Software versions prior to 10.6.1.3 allows remote, unauthenticated attackers to plant or predict a management session identifier and subsequently hijack that session once a legitimate administrator logs in, resulting in session theft with the full privileges of the compromised account. Dell's published CVSS 3.1 vector scores this 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), but that score overstates the issue on two counts: successful exploitation hinges on a victim authenticating into the attacker-controlled session (effectively a user-interaction requirement, UI:R), and the real-world impact is bounded by the privileges of the hijacked account, making confidentiality and integrity exposure meaningful but not unconditional. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires network reachability to the Dell SmartFabric OS10 management/web session interface on a version prior to 10.6.1.3. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The published CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8 Critical) overstates this issue in two respects. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Dell SmartFabric OS10 Software to version 10.6.1.3 or later - this is the vendor-released fix and resolves the session fixation weakness; consult Dell advisory DSA-2026-343 (https://www.dell.com/support/kbdoc/en-us/000507473/dsa-2026-343-security-update-for-dell-networking-os10-vulnerabilities) for the exact upgrade path and any platform-specific caveats, since switching-OS upgrades can require maintenance windows and reboots. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Dell SmartFabric OS10 deployments and identify every device running a version below 10.6.1.3, confirm whether management interfaces are reachable from untrusted networks, and immediately restrict management access to a dedicated, access-controlled VLAN or hardened jump host while monitoring for anomalous administrator sessions. …
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External POC / Exploit Code
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