CyberSecBulletin
CVE-2026-80357NVD status: Awaiting Analysis

Boot Optimized Server Storage (BOSS): On-Chip Debug and Test Interface With Improper Access Control

Published Updated By the CyberSecBulletin desk

CVE-2026-80357 is a high-severity on-chip debug and test interface with improper access control vulnerability in Boot Optimized Server Storage (BOSS) from Dell, with a CVSS 3.1 base score of 7.0 out of 10. It can be exploited with physical access to the device by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 2.2.13.2038 as the first without the flaw, so updating Boot Optimized Server Storage (BOSS) to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.11% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Boot Optimized Server Storage (BOSS) to 2.2.13.2038 or a later version.
  2. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
DellBoot Optimized Server Storage (BOSS)before 2.2.13.20382.2.13.2038

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
PhysicalThe attacker must physically touch the device.
Attack complexity
HighSuccess depends on conditions outside the attacker's control.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H. Scored by CNA (emc.com).

Official description

Dell Boot Optimized Server Storage (BOSS), versions prior to 2.2.13.2038, contains an On-Chip Debug and Test Interface With Improper Access Control vulnerability in the SMCU on 17G BOSS-N1 controllers. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Unauthorized access.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: On-Chip Debug and Test Interface With Improper Access Control

The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface.

How developers prevent this class of flaw

  • If feasible, the manufacturer should disable the JTAG interface or implement authentication and authorization for the JTAG interface. If authentication logic is added, it should be resistant to timing attacks. Security-sensitive data stored in registers, such as keys, etc. should be cleared when entering debug mode.

More On-Chip Debug and Test Interface With Improper Access Control vulnerabilities (CWE-1191)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).

References

Recent On-Chip Debug and Test Interface With Improper Access Control vulnerabilities

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