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CVE-2026-92158— F´: FpySequencer Integer Overflow in Stack Offset/Size Validation Leading to Out-of-Bounds Write

Quick assessment

Affected
nasa fprime
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.

F´（F Prime）是一个用于开发和部署航天飞行及其他嵌入式软件应用的框架。在 4.2.0 版本之前，Svc::FpySequencer 中的 STORE 指令存在栈写入验证问题：在进行 memcpy 之前，边界检查会将攻击者可控的偏移量和大小相加，从而导致整数回绕（integer wraparound），使得越界的目的地被误判为有效。当序列控制的 STORE 指令提供其 U32 类型偏移量与大小的和发生回绕时，memcpy 可能向 sequencer 栈外部写入数据，造成内存损坏、拒绝服务，甚至可能导致代码执行

CVSS 7.2 · High EPSS 0.75% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
nasa fprime < 4.2.0 affected
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I. Basic Information for CVE-2026-92158

Vulnerability Information
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Vulnerability Title
F´: FpySequencer Integer Overflow in Stack Offset/Size Validation Leading to Out-of-Bounds Write
Source: CVE Program / CVE List V5
Vulnerability Description
F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FpySequencer STORE directive stack write validation the bounds check adds attacker-controlled offset and size before memcpy, allowing integer wraparound to make an out-of-range destination appear valid. When a sequence-controlled STORE directive supplies a stack offset and size whose U32 sum wraps, memcpy can write outside the sequencer stack, causing memory corruption, denial of service, and potentially code execution. This issue is fixed in version 4.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
nasa fprime < 4.2.0 -

II. Public POCs for CVE-2026-92158

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III. Intelligence Information for CVE-2026-92158

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Patches & Fixes for CVE-2026-92158 (1)

Other References for CVE-2026-92158 (2)

Same Patch Batch · nasa · 2026-10-14 · 11 CVEs total

CVE-2026-92152 9.3 CRITICAL F´: Unvalidated Port Index in GenericHub
CVE-2026-92154 8.1 HIGH F´: File size bounds bypass in Svc::FileUplink via unsigned integer overflow in DATA packe
CVE-2026-92151 7.5 HIGH F´: SpacePacketDeframer Small Packet Assertion DoS
CVE-2026-92155 7.5 HIGH F´: FileUplink Unknown Packet Type Assertion DoS
CVE-2026-92150 7.5 HIGH F´: GenericHub Malformed Buffer Assertion DoS
CVE-2026-92153 7.1 HIGH F´: Arbitrary File Write in Svc::FileUplink via attacker-controlled StartPacket.destinatio
CVE-2026-92157 6.5 MEDIUM F´: FileDownlink SendPartial integer overflow lets legal startOffset/length values reach a
CVE-2026-92156 6.5 MEDIUM F´: EventManager asserts on legal oversized LogBuffer values delivered over the standard G
CVE-2026-92160 6.5 MEDIUM F´: SendPartial Integer Overflow Leading to Assertion DoS
CVE-2026-92159 6.5 MEDIUM F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corru

IV. Related Vulnerabilities

Same product: fprime
Same vendor: nasa
Same weakness: CWE-190

V. Comments for CVE-2026-92158

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