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CVE Record

CVE-2021-36134: Out of bounds write in Netop Vision Pro

Out of bounds write vulnerability in the JPEG parsing code of Netop Vision Pro up to and including 9.7.2 allows an adjacent unauthenticated attacker to write to arbitrary memory potentially leading to a Denial of Service (DoS).

HighCVSS 7.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw affects Netop Vision Pro through version 9.7.2. A device on the same adjacent network could trigger a JPEG parsing memory error without logging in, potentially crashing the software or disrupting availability. The supplied sources do not show active exploitation or a confirmed vendor fix.

Executive priority

Treat this as a high-priority availability risk for environments using Netop Vision Pro on shared or semi-trusted networks. It is not currently supported as actively exploited by the provided sources, but unauthenticated adjacent access makes timely inventory and vendor-directed remediation important.

Technical view

CVE-2021-36134 is an out-of-bounds write in Netop Vision Pro JPEG parsing. CVSS 3.1 is 7.4 high, with adjacent attack vector, low complexity, no privileges, no user interaction, changed scope, and high availability impact only.

Likely exposure

Exposure is most likely where Netop Vision Pro up to 9.7.2 is deployed on networks reachable by students, guests, labs, or other adjacent systems. The source bundle lacks CPEs, so asset discovery must rely on local inventory and vendor records.

Exploitation context

The CVE states an adjacent unauthenticated attacker could write to arbitrary memory, potentially causing denial of service. CISA KEV status is false in the bundle, and no supplied source supports active exploitation in the wild.

Researcher notes

Evidence is limited to the CVE description, CVSS metadata, and a McAfee reference URL. The bundle provides no CWE, no CPEs, no proof-of-concept status, and no remediation details, so avoid assuming affected build lineage beyond Netop Vision Pro through 9.7.2.

Mitigation direction

  • Check Netop or current vendor guidance for fixed versions or supported workarounds.
  • Inventory Netop Vision Pro installations and identify versions up to 9.7.2.
  • Reduce adjacent network reachability to affected systems while remediation is planned.
  • Prioritize replacement or upgrade if vendor confirms unsupported affected versions.

Validation and detection

  • Confirm whether Netop Vision Pro is installed and record exact versions.
  • Map affected hosts to network segments with adjacent untrusted devices.
  • Review logs and availability incidents for unexplained Vision Pro crashes.
  • Track vendor advisories because the bundle does not name a patch.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-36134 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.4CVSS 3.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H2.84Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.4High
CVSS 3.1 vector shape for CVE-2021-36134Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.