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CVE-2026-121997: Red Hat: A heap buffer overflow in gdbserver's QTDPsrc packet handler allows an unauthenticated remote attacker to achieve…

🗓️ 05 Nov 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 5 Views

Unauthenticated remote code execution in gdbserver via QTDPsrc packet handler heap overflow.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-121997
5 Nov 202616:26
–circl
cve
CVE
CVE-2026-121997
5 Nov 202616:08
–cve
cvelist
Cvelist
CVE-2026-121997 Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch
5 Nov 202616:08
–cvelist
debiancve
Debian CVE
CVE-2026-121997
6 Nov 202614:50
–debiancve
euvd
EUVD
EUVD-2026-117574
5 Nov 202616:08
–euvd
nvd
NVD
CVE-2026-121997
5 Nov 202617:18
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-121997
5 Nov 202617:18
–osv_debian
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-121997
6 Nov 202600:00
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2026-137548
5 Nov 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-121997
5 Nov 202616:08
–redhatcve
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05 Nov 2026 00:00Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.18.1
EPSS0.0071
5