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HIGH

CVE-2022-26126

CVSS v3

7.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.

Technical details

Published
2022-03-03

Frequently asked questions

What is CVE-2022-26126?

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.

Is CVE-2022-26126 actively exploited?

Active exploitation of CVE-2022-26126 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26126?

CVE-2022-26126 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2022-26126 affecting your environment?

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