CVE-2026-121995
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
55/100
Published: 2026-11-05
Modified: 2026-11-09
First seen: 2026-11-05
Status: active
Attack Surface
Network
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
Description
A stack buffer overflow in the GDB client's tracepoint upload handler allows an attacker-controlled debug stub to corrupt stack memory automatically during connection setup. The overflow results from GDB reading beyond the current reply boundary into a stale prior reply in the shared packet buffer.
Weakness Classification (1)
References & Advisories (2)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT