LiveActive security incident?Get immediate response
CVE Record

CVE-2018-3858: An exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0.

An exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0. A specially crafted TIFF image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a TIFF image to trigger this vulnerability and gain the ability to execute code. A different vulnerability than CVE-2018-3857.

HighCVSS 8.8Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Canvas Draw 4.0.0 can be compromised when a user opens a malicious TIFF image. The bug can corrupt memory and may let an attacker run code on that workstation. This is mainly a user-driven endpoint risk, not evidence of a remotely reachable service exposure.

Executive priority

Treat as high priority if Canvas Draw 4.0.0 is present. The likely blast radius is workstation compromise through malicious file handling, so focus on inventory, upgrade or removal, and controls around external image intake.

Technical view

CVE-2018-3858 is a heap overflow in Canvas Draw 4.0.0 TIFF parsing. A crafted TIFF can trigger an out-of-bounds write and arbitrary data overwrite, with possible code execution. It is CWE-122, CVSS 8.8, requires user interaction, and is distinct from CVE-2018-3857.

Likely exposure

Exposure is likely limited to systems with ACD Systems Canvas Draw 4.0.0 installed, especially where users open TIFF files from email, web downloads, shared drives, or customer submissions.

Exploitation context

The provided bundle does not show CISA KEV status or active exploitation evidence. Attack success depends on delivering a malicious TIFF and persuading or causing a user to process it in the vulnerable application.

Researcher notes

Sources name only Canvas Draw 4.0.0 as affected. The bundle does not provide patch details, exploit-in-the-wild evidence, or broader affected versions. Avoid assuming other ACD Systems products or versions are vulnerable without vendor confirmation.

Mitigation direction

  • Inventory for ACD Systems Canvas Draw 4.0.0 installations.
  • Check ACD Systems and Talos guidance for fixed versions or vendor mitigation.
  • Remove or upgrade vulnerable installations where business use is not required.
  • Restrict opening TIFF files from untrusted sources in affected workflows.
  • Use email and web filtering for suspicious TIFF attachments or downloads.

Validation and detection

  • Confirm installed Canvas Draw versions on user workstations.
  • Identify users or teams that process external TIFF images.
  • Review endpoint and email telemetry for TIFF files opened by Canvas Draw.
  • Verify compensating controls cover TIFF attachments and shared-file workflows.
  • Document whether a vendor fix or removal path was applied.
Prepared
Confidence
high
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-122: 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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-3858 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.8High
CVSS 3.0 vector shape for CVE-2018-3858Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
ACD SystemsCanvas DrawACD Systems Canvas Draw 4.0.0Listed
Weakness

CWE details

CWE-122

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