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CVE Record

CVE-2026-85437: MOOS-IvP through 24.8.1 Buffer Overflow in IvP Function String Decoders

MOOS-IvP through 24.8.1 contains multiple buffer overflow vulnerabilities in IvP function string decoders that trust attacker-controlled length fields without validation. Attackers can craft malicious encoded strings with mismatched declared and actual field lengths to overflow heap and stack buffers, potentially achieving remote code execution through MOOS variables or alog files.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

MOOS-IvP through 24.8.1 may mishandle maliciously encoded IvP function strings, corrupting memory and potentially allowing code execution. Systems processing attacker-controlled MOOS variables or alog files face the greatest risk. The supplied sources identify a proposed fix, but state that its pull request is not merged.

Executive priority

Treat this as an urgent remediation and exposure-reduction item for reachable or operationally sensitive MOOS-IvP deployments. Immediately restrict untrusted inputs, inventory affected installations, and monitor upstream resolution. Do not declare systems patched solely because an unmerged commit exists.

Technical view

IvP function string decoders trust declared field lengths without confirming sufficient input or destination capacity. Mismatched lengths can cause heap or stack buffer overflows, classified as CWE-787. The supplied CVSS 3.1 score is 9.8, reflecting network-accessible, low-complexity exploitation without privileges or user interaction and potentially complete confidentiality, integrity, and availability impact.

Likely exposure

Prioritize deployments running MOOS-IvP 24.8.1 or earlier that accept IvP function strings from untrusted MOOS variables or process untrusted alog files. Exposure is lower where inputs are authenticated, isolated, and strictly controlled. The bundle's structured affected-version entry is inconsistent with its description, so confirm installed versions and applicability with vendor guidance.

Exploitation context

The supplied record describes potential remote code execution, but provides no evidence of exploitation in the wild, and KEV is false. Treat malicious MOOS-variable input and imported alog files as plausible delivery paths. Actual exploit reliability, public proof-of-concept availability, and internet-wide exposure are not established by the bundle.

Researcher notes

The reported sink is FunctionEncoder.cpp, and the proposed change is commit 81ca795fcfd62b42002d277f5a2390f4c8ab8c7f under pull request 125. Review decoder length validation and all equivalent parsing paths. The bundle does not establish exploitability on every platform or configuration, and its affected-version metadata conflicts with the narrative range.

Mitigation direction

  • Check upstream guidance and release history for a merged, supported fix before upgrading.
  • Do not treat the unmerged proposed-fix commit as a supported release without vendor confirmation.
  • Restrict MOOS variable publishers to authenticated, trusted systems and limit network reachability.
  • Reject or quarantine alog files from untrusted sources until remediation is confirmed.
  • Isolate affected processes and apply least privilege to reduce code-execution impact.

Validation and detection

  • Inventory MOOS-IvP installations and record exact versions, build commits, and deployment roles.
  • Identify components that decode IvP function strings from MOOS variables or alog files.
  • Trace whether untrusted users, networks, or files can reach those decoding paths.
  • Verify any remediation contains the referenced bounds-validation changes and is vendor-supported.
  • Review crashes and memory-safety alerts associated with IvP function decoding.
Prepared
Confidence
medium
Sources
6

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
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-85437 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
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/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.

2CVSS vectors
3Timeline events
1ADP providers
6Source links

SSVC decision data

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

CVSS vector scores

2 official scores

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
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9VulnCheck
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-85437Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
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

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
moos-ivpmoos-ivp0unaffected
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.