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CVE Record

CVE-2023-3633: Out of Bounds Memory Corruption Issue in CEVA Engine

An out-of-bounds write vulnerability in Bitdefender Engines on Windows causes the engine to crash. This issue affects Bitdefender Engines version 7.94791 and lower.

HighCVSS 8.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-3633 is a memory-corruption flaw in Bitdefender Engines on Windows. The public description says it can crash the engine. For executives, the main concern is reliability of a security control and potential exposure where older engine versions remain deployed.

Executive priority

Treat as high priority where affected Bitdefender Engines protect critical Windows systems. The known business risk is disruption or compromise of a defensive engine, but public evidence in the bundle does not prove active exploitation.

Technical view

The CVE describes an out-of-bounds write in the Bitdefender CEVA engine, classified as CWE-787. It affects Bitdefender Engines version 7.94791 and lower on Windows. CVSS 3.1 is 8.1 with network attack vector, high complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Organizations running Bitdefender Engines on Windows at version 7.94791 or lower. The source bundle does not provide CPEs or name specific Bitdefender product packaging.

Exploitation context

The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. Public evidence here does not include exploit availability, proof-of-concept status, or exploitation prerequisites beyond the CVSS vector.

Researcher notes

Evidence is limited to the CVE record and Bitdefender advisory reference. The description names an out-of-bounds write and engine crash; CVSS indicates broader CIA impact. No CPEs, exploit details, or confirmed exploitation are provided.

Mitigation direction

  • Identify Windows systems using Bitdefender Engines version 7.94791 or lower.
  • Check Bitdefender’s advisory for fixed engine guidance and update affected deployments.
  • Prioritize systems where Bitdefender scanning is internet-facing or business-critical.
  • Monitor vendor and CVE records for revised affected-version or remediation details.

Validation and detection

  • Inventory Bitdefender engine versions across managed Windows endpoints and servers.
  • Confirm whether any detected engine version is 7.94791 or lower.
  • Review endpoint protection health telemetry for engine crashes or repeated service failures.
  • Document remediation status against Bitdefender’s advisory, not assumed fixed versions.
Prepared
Confidence
high
Sources
3

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-787: 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-2023-3633 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
8.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.1High
CVSS 3.1 vector shape for CVE-2023-3633Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
BitdefenderEngines7.94791unaffected
Weakness

CWE details

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

CWE-787 · source CWE mapping

Out-of-bounds Write

Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.