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Vendor Workaround
There is no mitigation for this vulnerability. Users should only connect GDB to trusted debug targets.
Tracking
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Fri, 06 Nov 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Red Hat
Red Hat enterprise Linux Redhat hardened Images |
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| Vendors & Products |
Red Hat
Red Hat enterprise Linux Redhat hardened Images |
Fri, 06 Nov 2026 00:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Thu, 05 Nov 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A stack buffer overflow in the GDB client's remote protocol handler allows an attacker-controlled debug target to execute arbitrary code in the GDB process. The vulnerability exists in fetch_register_using_p, which decodes a stub's register reply into an alloca-sized buffer without bounding writes by the register width. | |
| Title | Gdb: gdb: stack buffer overflow in fetch_register_using_p via unchecked p-reply length | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat rhel Els |
|
| Weaknesses | CWE-121 | |
| CPEs | cpe:/a:redhat:enterprise_linux:10 cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:9 cpe:/a:redhat:hummingbird:1 cpe:/o:redhat:rhel_els:6 cpe:/o:redhat:rhel_els:7 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat rhel Els |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-11-06T04:56:37.588Z
Reserved: 2026-11-04T13:28:12.838Z
Link: CVE-2026-121994
No data.
Status : Awaiting Analysis
Published: 2026-11-05T17:18:00.503
Modified: 2026-11-06T05:18:23.807
Link: CVE-2026-121994
OpenCVE Enrichment
Updated: 2026-11-06T08:15:17Z
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CWE-121
Stack-based Buffer Overflow