EUVD-2026-68611
GHSA-hqqg-x2jw-ggpc
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Remotely reachable null dereference requiring no privileges or interaction; impact is limited to low availability loss (crash) with no confidentiality or integrity consequence.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability has been found in armink struct2json 1.0. This affects the function S2J_STRUCT_GET_string_ELEMENT in the library struct2json/inc/s2jdef.h of the component JSON Deserialization. The manipulation of the argument valuestring leads to null pointer dereference. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Null pointer dereference in armink struct2json 1.0 allows remote attackers to crash any application that deserializes attacker-controlled JSON through the library's S2J_STRUCT_GET_string_ELEMENT function. The root cause is an absence of null validation on the valuestring field during JSON deserialization in struct2json/inc/s2jdef.h, yielding a remotely triggerable denial-of-service. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target application must invoke struct2json's `S2J_STRUCT_GET_string_ELEMENT` macro on JSON input that originates from attacker-controlled data - this is the specific code path that triggers the null dereference. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 6.9 (AV:N/AC:L/AT:N/PR:N/UI:N) reflects unauthenticated, low-complexity remote exploitation, but the impact ceiling is strictly availability - VC:N/VI:N/VA:L - meaning no data disclosure or integrity compromise is possible. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis - the vendor did not respond to disclosure and no fixed release is reflected in the CPE data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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More in Struct2Json
View allSame weakness CWE-476 – NULL Pointer Dereference
View allSame technique Denial Of Service
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External POC / Exploit Code
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