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VulnerabilityPublished

CVE-2026-123151: Red Hat Enterprise Linux 10 · Stack-based Buffer Overflow

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited.

Data as of 5 Nov 2026, 16:34 UTC

Severity
Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10crashAffected–Fixed in–
Red Hat Enterprise Linux 10gdbAffected–Fixed in–
Red Hat Enterprise Linux 6gdbAffected–Fixed in–
Red Hat Enterprise Linux 7gdbAffected–Fixed in–
Red Hat Enterprise Linux 8crashAffected–Fixed in–
Red Hat Enterprise Linux 8gcc-toolset-14-gdbAffected–Fixed in–

Description

A flaw was found in the GNU debugger (GDB). When GDB connects to a remote debug target, a malicious target can cause GDB to overflow a buffer on the stack while parsing the target's replies. This can crash GDB or potentially allow the target to execute arbitrary code in the GDB client process with the privileges of the user running GDB.

References

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