peter bassill · operator
$ cve CVE-2022-26495 JSON

CVE-2022-26495

9.8
CRITICAL · CVSS 3.1 · EPSS 2.9% (pctl 86)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS2.86% — more likely to be exploited than 86% of all CVEs
WeaknessCWE-190
On CISA KEVno
Public exploitnone known
Published2022-03-06
Last modified2026-06-17

Affected (3)

VendorProduct
debiandebian linux
fedoraprojectfedora
network block device projectnetwork block device

References

→ the Explorer  ·  watch your stack  ·  NVD