VulnerabilityPublished 11 Nov 2026

CVE-2026-86363: Dell Live Optics Collector · Generation of Predictable IV with CBC Mode

Affects Dell Live Optics CollectorSource CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium : upgrade to 27.3.13.330 or later when convenient.

Data as of 11 Nov 2026, 17:48 UTC

CVSS 3.1 base score

5.5Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (dell)	CVSS 3.1	5.5

Patch: Available – fixed in 27.3.13.330 or later

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Dell Live Optics Collector to 27.3.13.330 or later.

Affected software

Product	Affected	Fixed in
DellLive Optics Collector	Affected =0	Fixed in 27.3.13.330 or later

AI-suggested

Upgrade Dell Live Optics Collector to version 27.3.13.330 or later, where this vulnerability is fixed. No other mitigation actions are indicated by the vendor advisory.

Description

Dell Live Optics Collector versions prior to 27.3.13.330 contain a vulnerability involving the generation of predictable initialization vectors (IVs) when using CBC mode encryption. This flaw allows a low privileged local attacker to potentially expose sensitive information. The vulnerability has a medium severity rating with a CVSS score of 5.5. A fix is available in version 27.3.13.330 and later.

Impact

An attacker with local low privilege access could exploit the predictable IV generation to expose sensitive information, compromising confidentiality. There is no impact on integrity or availability reported. No known exploits are currently in the wild.

Summary

CVE-2026-86363 describes a cryptographic vulnerability in Dell Live Optics Collector where predictable IVs are generated in CBC mode encryption. This weakness can be exploited by an attacker with local, low-privilege access to gain information exposure. The issue affects versions prior to 27.3.13.330. The vulnerability has been assigned a CVSS 3.1 base score of 5.5, reflecting a medium severity impact primarily on confidentiality. The vendor has released a fixed version 27.3.13.330 that addresses this issue.

CWE-329Generation of Predictable IV with CBC Mode (opens in a new tab)
Variant weaknessLikelihood of exploit: MediumOWASP Top 10 A04:2025: Cryptographic Failures (opens in a new tab)
The product generates and uses a predictable initialization Vector (IV) with Cipher Block Chaining (CBC) Mode, which causes algorithms to be susceptible to dictionary attacks when they are encrypted under the same key.
Implementation
NIST recommends two methods of generating unpredictable IVs for CBC mode. The first is to generate the IV randomly. The second method is to encrypt a nonce with the same key and cipher to be used to encrypt the plaintext.
OWASP Cheat Sheets
Forgot Password (opens in a new tab)
Transport Layer Protection (opens in a new tab)
User Privacy Protection (opens in a new tab)
Password Storage (opens in a new tab)
Cryptographic Storage (opens in a new tab)
OWASP ASVS 4.0.3
V2.3.1 (opens in a new tab)
V2.6.2 (opens in a new tab)
V2.7.6 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

dell.com/support/kbdoc/en-us/000529138/dsa-2026-485-security-update-for-dell-live-optics-collector-vulnerabilities (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Nov 2026, 17:48 UTC

WeaknessesCWE-329

Technical details

References

Community reviews

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