CVE-2026-92158

Status: DeferredHigh (7.2)—

Severity7.2High · CVSS 3.1

Exploitation probability0.75 %higher than 54% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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.

CVSS

Base score: 7.2
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.75 %
Percentile among all scored CVEs: 54
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement90 %
Primary impactT1499 Endpoint Denial of Serviceimpact75 %
Secondary impactT1059 Command and Scripting Interpreterexecution30 %

Vector AV:N con PR:H exige privilegios altos por red, por lo que T1210; el texto cita corrupción de memoria por desbordamiento U32 y DoS, y la ejecución de código solo como posibilidad.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

F Prime — F Prime^AI

CWEs

CWE-190, CWE-787

References

Show 4 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-92158",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "nasa",
          "product": "fprime",
          "versions": [
            {
              "status": "affected",
              "version": "< 4.2.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-14T18:19:35.217",
  "references": [
    {
      "url": "https://github.com/nasa/fprime/commit/7527430d9ae7c88f3d649d376a45c866b0aed595",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/nasa/fprime/pull/4534",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/nasa/fprime/releases/tag/v4.2.0",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/nasa/fprime/security/advisories/GHSA-vfwv-3qv7-jjjq",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-10-15T14:45:10.783",
  "sourceIdentifier": "security-advisories@github.com"
}