CVE-2026-14759: Heap-based Buffer Overflow in radareorg radare2
A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch.
AI Analysis
Technical Summary
CVE-2026-14759 is a heap-based buffer overflow vulnerability affecting radareorg radare2 versions 6.1.0 through 6.1.6. The vulnerability is located in the r_bin_java_inner_classes_attr_calc_size function of the shlr/java/class.c file, part of the RBinJava Line Number Table Parser component. This flaw can be triggered by local manipulation, leading to a heap overflow condition. Public exploit code is available, but the attack requires local privileges. A patch identified by commit cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87 addresses the vulnerability.
Potential Impact
Successful exploitation of this vulnerability can result in a heap-based buffer overflow, potentially leading to memory corruption. Given the local attack vector and medium CVSS score, the impact is limited to local users with some privileges. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
A patch identified by commit cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87 is available and should be applied to affected versions 6.1.0 through 6.1.6 of radare2. Deploying this patch will remediate the vulnerability. Since the vulnerability requires local access, restricting local user permissions may reduce risk until patched. Patch status is not explicitly confirmed in a vendor advisory, so verify with the official radareorg sources for the latest remediation guidance.
CVE-2026-14759: Heap-based Buffer Overflow in radareorg radare2
Description
A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch.
CVSS v4.0
Score 4.8medium
Affected software
pkg:github/radareorg/radare2cpe:2.3:a:radareorg:radare2:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-14759 is a heap-based buffer overflow vulnerability affecting radareorg radare2 versions 6.1.0 through 6.1.6. The vulnerability is located in the r_bin_java_inner_classes_attr_calc_size function of the shlr/java/class.c file, part of the RBinJava Line Number Table Parser component. This flaw can be triggered by local manipulation, leading to a heap overflow condition. Public exploit code is available, but the attack requires local privileges. A patch identified by commit cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87 addresses the vulnerability.
Potential Impact
Successful exploitation of this vulnerability can result in a heap-based buffer overflow, potentially leading to memory corruption. Given the local attack vector and medium CVSS score, the impact is limited to local users with some privileges. There is no indication of remote exploitation or privilege escalation from the provided data.
Mitigation Recommendations
A patch identified by commit cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87 is available and should be applied to affected versions 6.1.0 through 6.1.6 of radare2. Deploying this patch will remediate the vulnerability. Since the vulnerability requires local access, restricting local user permissions may reduce risk until patched. Patch status is not explicitly confirmed in a vendor advisory, so verify with the official radareorg sources for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-04T16:19:34.090Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4a7d9c27e9c7971929c0e9
Added to database: 07/05/2026, 15:51:56 UTC
Last enriched: 07/13/2026, 09:03:02 UTC
Last updated: 08/18/2026, 10:54:22 UTC
Views: 104
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