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CRITICAL

CVE-1999-0199

CVSS v3

9.8

CRITICAL

EPSS Score

2.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an application whose developer was unaware of a documentation update from 1999.

Technical details

Published
2020-10-06

Frequently asked questions

What is CVE-1999-0199?

manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an application whose developer was unaware of a documentation update from 1999.

Is CVE-1999-0199 actively exploited?

Active exploitation of CVE-1999-0199 has not been confirmed. Its EPSS score was 2.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-1999-0199?

CVE-1999-0199 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-1999-0199 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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