Skip to main content
VulnerabilityPublished

CVE-2026-123151: Stack-based Buffer Overflow

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-123151

Not known to be exploited.

Data as of 5 Nov 2026, 19:36 UTC

Severity
High

Rated High by Threat Radar's AI analysis · 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–

AI-suggested

There is no mitigation available for this vulnerability. Users are advised to only connect GDB to trusted remote debug targets to avoid exploitation.

Description

A stack-based buffer overflow vulnerability exists in the GNU debugger (GDB) when connecting to a remote debug target. A malicious remote target can trigger this overflow during the connection handshake, potentially causing GDB to crash or allowing arbitrary code execution with the privileges of the user running GDB. There is no available mitigation other than connecting only to trusted debug targets.

References

Community reviews

Loading reviews…