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CRITICAL

CVE-2022-26496

CVSS v3

9.8

CRITICAL

EPSS Score

3.6 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.

Technical details

Published
2022-03-06

Frequently asked questions

What is CVE-2022-26496?

In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.

Is CVE-2022-26496 actively exploited?

Active exploitation of CVE-2022-26496 has not been confirmed. Its EPSS score was 3.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26496?

CVE-2022-26496 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-26496 affecting your environment?

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