EUVD-2026-41771
GHSA-q4m4-82h9-qfgv
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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
Local attack vector, low privileges to run the tool, no scope change, and only availability impact consistent with a crash from integer overflow.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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
Lifecycle Timeline
1DescriptionCVE.org
A security vulnerability has been detected in radareorg radare2 up to 6.1.6. The affected element is the function r_str_ndup/r_str_append of the file libr/util/str.c. The manipulation leads to integer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The identifier of the patch is a20a56917ae85d732e683f8d9078bdcfee92446c. Applying a patch is the recommended action to fix this issue.
AnalysisAI
Integer overflow in radare2's string utility library affects versions up to 6.1.6, allowing a local low-privileged attacker to crash the application through manipulated input processed by r_str_ndup or r_str_append in libr/util/str.c. The impact is limited to availability - no confidentiality or integrity compromise is confirmed by the CVSS 4.0 vector (VC:N/VI:N/VA:L). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local access to a system where radare2 is installed, with at least low-privilege execution rights (PR:L per CVSS 4.0). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall risk is very low. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local attacker with low-privilege access on a system running radare2 crafts malicious input - such as a specially structured binary or string argument - that triggers the integer overflow in r_str_ndup or r_str_append during processing. The overflow causes an incorrect memory size calculation, leading to a crash of the radare2 process. … |
| Remediation | The upstream fix is available as commit a20a56917ae85d732e683f8d9078bdcfee92446c in the radare2 GitHub repository (https://github.com/radareorg/radare2/commit/a20a56917ae85d732e683f8d9078bdcfee92446c); however, no tagged release version incorporating this fix has been independently confirmed from the available intelligence - treat this as an upstream fix available via source, with a formally released patched version not yet verified. … Detailed patch versions, workarounds, and compensating controls in full report. |
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An out-of-bounds read in radare2 v.5.8.9 and before exists in the print_insn32 function of libr/arch/p/nds32/nds32-dis.h
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Same weakness CWE-189 – Numeric Errors
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External POC / Exploit Code
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