What’s Vulnerable › Vulnerabilities

CVE-2022-1586

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-16 · updated 2026-06-17
• Weakness: CWE-125

Description

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 35, 36
• Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
• NetApp H300S Firmware: all versions
• NetApp H410C Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700S Firmware: all versions
• NetApp Hci Management Node: all versions
• NetApp ONTAP Select Deploy administration utility: all versions
• NetApp Solidfire: all versions
• PCRE2: before 10.40 — fixed in 10.40
• Red Hat Enterprise Linux: 8.0, 9.0

How to fix

Upgrade to a fixed version: PCRE2 10.40. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2077976%2C
• https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a%2C
• https://github.com/PCRE2Project/pcre2/commit/d4fa336fbcc388f89095b184ba6d99422cfc676c
• https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWNG2NS3GINO6LQYUVC4BZLUQPJ3DYHA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXINO3KKI5DICQ45E2FKD6MKVMGJLEKJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KAX7767BCUFC7JMDGP7GOQ5GIZCAUGBB/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M2GLQQUEY5VFM57CFYXVIFOXN2HUZPDM/
• https://security.netapp.com/advisory/ntap-20221028-0009/
• https://bugzilla.redhat.com/show_bug.cgi?id=2077976
• https://bugzilla.redhat.com/show_bug.cgi?id=2077976%2C
• https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a

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