CVE-2021-35942

The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS

2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-25)

CWEs

CWE-190, CWE-704

Published

2021-07-22

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• gnu:glibc
• netapp:active_iq_unified_manager
• netapp:e-series_santricity_os_controller
• netapp:hci_management_node
• netapp:ontap_select_deploy_administration_utility
• netapp:solidfire

References

• https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
• https://security.gentoo.org/glsa/202208-24
• https://security.netapp.com/advisory/ntap-20210827-0005/
• https://sourceware.org/bugzilla/show_bug.cgi?id=28011
• https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c

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