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CVE-2026-85454— MOOS core-moos through 10.4.0 Off-by-One Buffer Overflow in Serial Telegram Handling

Quick assessment

Affected
themoos core-moos
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MOOS core-moos 10.4.0 及之前版本存在一个缓冲区溢出漏洞。该漏洞位于 函数中，该函数在序列数据包（telegram）栈缓冲区末尾之后的一字节处写入 NUL 终止符，导致堆栈损坏。攻击者若能控制串行线路，可发送一个满长的数据包（full-length telegram）来触发这个“差一”写入（off-by-one write），从而可能实现任意代码执行。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85454

Vulnerability Information
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Vulnerability Title
MOOS core-moos through 10.4.0 Off-by-One Buffer Overflow in Serial Telegram Handling
Source: CVE Program / CVE List V5
Vulnerability Description
MOOS core-moos through 10.4.0 contains a buffer overflow vulnerability in CMOOSSerialPort::GetTelegram() that writes a NUL terminator one byte past the serial telegram stack buffer. Attackers controlling the serial line can send a full-length telegram to trigger the off-by-one write, corrupting the stack and potentially enabling code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
themoos core-moos 0 ~ 10.4.0 -

II. Public POCs for CVE-2026-85454

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III. Intelligence Information for CVE-2026-85454

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Patches & Fixes for CVE-2026-85454 (3)

Vendor Advisories for CVE-2026-85454 (1)

Vendor Pages for CVE-2026-85454 (1)

Same Patch Batch · themoos · 2026-09-03 · 18 CVEs total

CVE-2026-85440 9.8 CRITICAL MOOS core-moos through 10.4.0 MOOSDB Pre-Authentication Heap Overflow via Negative Packet
CVE-2026-85433 9.8 CRITICAL MOOS essential-moos through 10.0.1 pShare Unauthorized Runtime Route Reconfiguration
CVE-2026-85424 9.8 CRITICAL MOOS core-moos through 10.4.0 Missing Authentication for MOOSDB Publish, Subscribe and DB_
CVE-2026-85428 9.8 CRITICAL MOOS core-moos through 10.4.0 MOOSDB HTTP Server Unauthenticated Variable Write
CVE-2026-85430 9.1 CRITICAL MOOS essential-moos through 10.0.1 pShare Unauthenticated UDP Datagram Republishing
CVE-2026-85452 8.8 HIGH MOOS ui-moos through 50b9c6c uMS Buffer Overflow via Long MOOS Identifiers
CVE-2026-85455 8.2 HIGH MOOS core-moos through 10.4.0 MOOSDB Out-of-Bounds Read via Short Packet
CVE-2026-85432 8.2 HIGH MOOS core-moos through 10.4.0 MOOSDB Message Source Spoofing via Wire Identity
CVE-2026-85427 8.1 HIGH MOOS essential-moos through 10.0.1 pAntler Remote Code Execution via Unauthenticated MISSI
CVE-2026-85441 7.5 HIGH MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Negative Serialized String Leng
CVE-2026-85443 7.5 HIGH MOOS core-moos through 10.4.0 MOOSDB Accept Loop Denial of Service
CVE-2026-85431 7.5 HIGH MOOS essential-moos through 10.0.1 pMOOSBridge Unauthenticated UDP Packet Injection
CVE-2026-85450 7.5 HIGH MOOS core-moos through 10.4.0 MOOSDB HTTP Server Resource Exhaustion
CVE-2026-85436 7.5 HIGH MOOS essential-moos through 10.0.1 pMOOSBridge Heap Corruption via Negative UDP Length
CVE-2026-85442 7.5 HIGH MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet Allocation
CVE-2026-85451 7.1 HIGH MOOS core-moos through 10.4.0 Remote Process Termination via Hard-Coded Multicast Passphra
CVE-2026-85453 6.1 MEDIUM MOOS core-moos through 10.4.0 MOOSDB HTTP Pages Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: core-moos
Same vendor: themoos
Same weakness: CWE-193

V. Comments for CVE-2026-85454

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