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CVE Record

CVE-2020-27283: An attacker could send a specially crafted message to Crimson 3.1 (Build versions prior to 3119.001) that c...

An attacker could send a specially crafted message to Crimson 3.1 (Build versions prior to 3119.001) that could leak arbitrary memory locations.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Crimson 3.1 builds before 3119.001 can disclose memory when they receive a specially crafted message. The main business risk is exposure of sensitive operational data, not direct system takeover. It is medium severity but network-reachable and requires no login or user action.

Executive priority

Treat this as a moderate operational technology exposure. Prioritize asset identification and upgrade planning, especially for remotely reachable systems, but it does not currently indicate ransomware-style impact or known active exploitation.

Technical view

CVE-2020-27283 is a network-accessible memory disclosure in Crimson 3.1 before build 3119.001. CVSS 3.1 is 5.3: low complexity, no privileges, no user interaction, unchanged scope, low confidentiality impact, and no integrity or availability impact. The source bundle maps it to CWE-404.

Likely exposure

Exposure is limited to environments running Crimson 3.1 builds earlier than 3119.001. Risk rises where affected systems are reachable from untrusted networks or poorly segmented operational networks.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not listed as CISA KEV. The described attack requires sending a specially crafted message over the network, but no exploit maturity details are provided.

Researcher notes

Evidence is sparse in the bundle: affected product, version boundary, memory disclosure impact, CVSS vector, CWE, and CISA advisory reference are provided. Do not infer additional affected products, protocols, exploit availability, or detailed remediation beyond vendor/CISA guidance.

Mitigation direction

  • Inventory Crimson 3.1 installations and record exact build versions.
  • Confirm and apply the vendor or CISA-recommended build 3119.001 or later.
  • Restrict network access to Crimson 3.1 services from trusted management hosts only.
  • Review vendor guidance before relying on compensating controls.

Validation and detection

  • Verify no Crimson 3.1 installation is below build 3119.001.
  • Check network segmentation and firewall rules around affected systems.
  • Review logs for unexpected network messages to Crimson 3.1 services.
  • Document upgrade status and any temporary access restrictions.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-404: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2020-27283 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
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

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

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
3Timeline events
2ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: partial

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
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2020-27283Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCrimson 3.1Build versions prior to 3119.001Listed
Weakness

CWE details

CWE-404

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