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CVE-2026-92159— F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corrupted packetized telemetry

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 and 部署航天飞行及其他嵌入式软件应用的框架。在 4.3.0 版本之前，Svc::TlmPacketizer 组件中的 TlmRecv_handler 存在固定槽位复制问题：TlmRecv_handler 会将 val.getSize 字节复制到 entry.channelSize 大小的存储区域中，但未验证运行时值是否确实适合该固定槽位。当某配置通道的遥测更新所携带的序列化值大于该通道的固定槽位大小时，复制操作会覆盖相邻通道的字段，从而导致发出损坏的包化遥测数据。该问题已在

CVSS 6.5 · Medium EPSS 0.31% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
nasa fprime < 4.3.0 affected
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I. Basic Information for CVE-2026-92159

Vulnerability Information
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Vulnerability Title
F´: TlmPacketizer copies oversized telemetry past configured channel slots and emits corrupted packetized telemetry
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 4.3.0, Svc::TlmPacketizer TlmRecv_handler fixed-slot copy TlmRecv_handler copies val.getSize bytes into entry.channelSize storage without confirming that the runtime value fits. When a telemetry update for a configured channel carries a serialized value larger than that channel fixed slot, the copy overwrites adjacent channel fields and causes corrupted packetized telemetry to be emitted. This issue is fixed in version 4.3.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
nasa fprime < 4.3.0 -

II. Public POCs for CVE-2026-92159

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III. Intelligence Information for CVE-2026-92159

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Patches & Fixes for CVE-2026-92159 (2)

Other References for CVE-2026-92159 (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-2026-92158 7.2 HIGH F´: FpySequencer Integer Overflow in Stack Offset/Size Validation Leading to Out-of-Bounds
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

IV. Related Vulnerabilities

Same product: fprime
Same vendor: nasa
Same weakness: CWE-130

V. Comments for CVE-2026-92159

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