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HPE Networking EUVDEUVD-2026-108393

| CVE-2026-79893 HIGH
Buffer Overflow (CWE-119)
2026-10-22 security-alert@hpe.com GHSA-f323-52g4-m6v3
7.5
CVSS 3.1 · Vendor: hpe
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach HPE networking service over network
  2. Exploit
    Send crafted malicious request
  3. Impact
    Trigger availability fault (DoS)

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates no authentication or user interaction is required and the flaw is reachable over the network against the affected HPE networking product, but the specific vulnerable feature, protocol, service, or configuration is not described in the available sources (no CVE description was provided). The only consulted detail - the HPE security bulletin hpesbnw05162en_us - was not retrievable here, so the exact affected models, versions, and any non-default enabling conditions must be confirmed directly from that HPE advisory. The practical limiting factor is network reachability to the affected device's exposed service; exposure is reduced where management/data interfaces are segmented or not internet-facing.

Impact

The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, base 7.5) describes a remotely reachable, low-complexity, unauthenticated issue whose only modeled impact is availability (A:H) - i.e. a denial-of-service condition, not data exposure. This directly conflicts with the single input Tag 'Information Disclosure', which would normally imply confidentiality impact (C:H); the CVSS vector explicitly sets C:N and I:N, so the tag and the scored impact disagree and the mislabel should be verified against the HPE bulletin. No description, CWE, EPSS probability, CISA KEV entry, or PoC reference is present in the input, so exploitation likelihood cannot be quantified from these signals and there is no SSVC-style automatable/technical-impact data beyond the CVSS metrics. The vendor-assigned priority is 'this_week', which is a moderate-urgency signal (not act_now/emergency), consistent with a high-severity but not confirmed-exploited availability flaw. Net: treat as a credible remote unauthenticated DoS against an HPE networking product warranting prompt patching per the 'this_week' label, but the reachability and real-world exploitation rate are unconfirmed because no description, EPSS, KEV, or PoC data was supplied.

Exploit ScenarioDerived

A remote, unauthenticated attacker with network reachability to an affected HPE networking device sends crafted traffic that triggers an availability fault, rendering the device or service unresponsive (denial of service). Because CVSS shows AC:L/PR:N/UI:N, no authentication, user interaction, or special timing is required, though the exact trigger is not described in the available sources. No public exploit identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 22, 2026

Remote unauthenticated traffic against an HPE networking product can cause a high availability impact in CVE-2026-79893, according to the assessed CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, 7.5). No CVE description, CWE, affected model/version list, or fixed version is present in the supplied data, and the linked HPE bulletin could not be retrieved for confirmation; no public exploit was identified at time of analysis.

RemediationAI

No fixed version or vendor workaround is specified in the available data, and the linked HPE bulletin hpesbnw05162en_us could not be retrieved; that bulletin should be used to confirm affected models, fixed firmware, and any HPE-specific mitigation. No vendor-released patch was identified at time of analysis. As a compensating control, restrict network reachability to exposed services on the affected HPE device, particularly management interfaces, through segmentation or access control lists; the trade-off is loss of legitimate administrative or operational access from restricted networks, and the exact service and port cannot be confirmed from the provided evidence.

Affected VersionsENISA

Unknown product 10.3.0.0 ≤10.4.1.13
Unknown product 10.8.0.0 ≤10.8.1.1
Unknown product 10.6.0.0 ≤10.7.2.6

Affected Packages

euvd unknown_product no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The affected technology is an unspecified HPE networking product, and no CWE is supplied, so the root-cause class cannot be confirmed from the available data. The assessed CVSS 3.1 vector indicates network reachability, low attack complexity, no required privileges, no user interaction, unchanged scope, and only availability impact (C:N/I:N/A:H). The supplied tag labels the issue 'Information Disclosure', but the assessed vector does not model confidentiality or integrity loss; that discrepancy cannot be resolved without the HPE bulletin, and the specific feature, protocol, service, or configuration that triggers the flaw is not described in the available sources. The HPE security bulletin hpesbnw05162en_us is the authoritative reference for the affected models, versions, and enabling conditions.

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Severity by source

Vendor (hpe) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI 7.5 HIGH

Remote, unauthenticated, low-complexity per vendor vector; impact is availability-only (A:H) consistent with a denial of service, with no confidentiality or integrity effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

DescriptionCVE.org

No description provided

Executive ViewAI

Why It Matters

A high-severity vulnerability in an unspecified HPE networking product could allow remote, unauthenticated attackers to disrupt availability. This poses a significant operational risk to network-dependent services and requires immediate leadership attention to prioritize investigation and mitigation.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Implement network segmentation to isolate HPE networking devices, restrict remote access via ACLs, deploy IDS/IPS signatures to detect exploitation attempts, and monitor vendor advisories for updates.

Threat Intelligence Overview

EPSS Score
0.3%
Top 74% exploitable
Prevalence
High
widely deployed HPE enterprise networking hardware across organizations
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

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