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CVE-2021-45960

Published: Jan 1, 2022Updated: May 5, 2025 Sources: CVE List NVD BDU csafCWE-682
8.8HIGH
NVD MITRE
EPSS Score
4.2%
Top 10.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-682

Affected Products

netapp
commercial·US
active iq unified manager
Hardware Firmware
hci baseboard management controller
Hardware Firmware
oncommand workflow automation
Hardware Firmware
solidfire \& hci management node
Hardware Firmware
NetApp Inc.
commercial·USaka netapp
OnCommand Workflow Automation
Hardware Firmware
NetApp SolidFire
Hardware Firmware
HCI Management Node
Hardware Firmware
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
IBM Corp.
commercial·USaka ibm, ibm corporation
IBM Cloud Pak System
Databases / db-tooling
IBM QRadar SIEMOn-premSecurity Product
Security Products / siem-soar
libexpat project
oss-projectaka libexpat, expat
libexpatLibraryLibrary
OSS Libraries / generic-library
tenable
commercial
nessusOn-premSecurity Product
Security Products / vuln-mgmt-scanner
and 12 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-45960?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://github.com/libexpat/libexpat/issues/531
github.com
https://github.com/libexpat/libexpat/pull/534
github.com
https://bugzilla.mozilla.org/show_bug.cgi?id=1217609
bugzilla.mozilla.org
and 31 more references View all →

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