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CVE Record

CVE-2023-24094: An issue in the bridge2 component of MikroTik RouterOS v6.40.5 allows attackers to cause a Denial of Servic...

An issue in the bridge2 component of MikroTik RouterOS v6.40.5 allows attackers to cause a Denial of Service (DoS) via crafted packets.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-24094 is a denial-of-service issue reported in the bridge2 component of MikroTik RouterOS v6.40.5. An unauthenticated network attacker may be able to disrupt device availability using crafted packets. The provided sources do not name a vendor patch or confirm active exploitation.

Executive priority

Treat this as a high-priority availability risk for MikroTik environments, especially where RouterOS v6.40.5 supports critical connectivity. Business urgency depends on exposure, redundancy, and whether vendor guidance identifies a fixed release.

Technical view

The record describes a network-reachable, low-complexity DoS in MikroTik RouterOS v6.40.5 bridge2, mapped to CWE-787 with CVSS 3.1 score 7.5. Impact is availability only: confidentiality and integrity are not indicated as affected. The affected-products metadata is incomplete despite the description naming RouterOS v6.40.5.

Likely exposure

Exposure is most likely on MikroTik RouterOS v6.40.5 systems using or exposing bridge2 behavior to untrusted network traffic. The source bundle does not define broader affected versions, vulnerable configurations, or exact network adjacency requirements beyond AV:N.

Exploitation context

The CVE is not listed as KEV in the provided data, and no cited source confirms active exploitation. Public reference material exists, but the evidence provided is insufficient to claim exploitation in the wild.

Researcher notes

The record is sparse: affected CPEs are not populated, and the only explicit version is RouterOS v6.40.5 in the description. Avoid extrapolating to other RouterOS versions without vendor or CVE-list evidence. KEV is false in the provided bundle.

Mitigation direction

  • Inventory MikroTik devices and identify any RouterOS v6.40.5 installations.
  • Check MikroTik guidance for fixed versions or vendor-supported mitigations.
  • Limit untrusted traffic reaching bridge interfaces where operationally possible.
  • Prioritize upgrade planning for exposed or business-critical RouterOS systems.
  • Monitor vendor and CVE updates for clearer affected-version and fix information.

Validation and detection

  • Confirm RouterOS versions from asset inventory or device administration records.
  • Identify devices using bridge features or exposed to untrusted network segments.
  • Review logs and monitoring for unexplained RouterOS availability disruptions.
  • Compare current device versions against any vendor-published fixed release.
  • Document uncertainty where affected-version evidence remains incomplete.
Prepared
Confidence
medium
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-2023-24094 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
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2023-24094Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
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.