Attacker Value
Unknown
0
CVE-2021-3516
0
CVE ID
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CVE-2021-3516
(Last updated November 08, 2023) ▾
MITRE ATT&CK
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Command and Control
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Credential Access
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Defense Evasion
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Initial Access
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Persistence
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Description
There’s a flaw in libxml2’s xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
libxml2 libxml2 2.9.11
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- debian,
- fedoraproject,
- netapp,
- oracle,
- redhat,
- xmlsoft
Products
- clustered data ontap -,
- clustered data ontap antivirus connector -,
- debian linux 9.0,
- enterprise linux 6.0,
- enterprise linux 7.0,
- enterprise linux 8.0,
- fedora 33,
- fedora 34,
- jboss core services -,
- ontap select deploy administration utility -,
- xmllint,
- zfs storage appliance kit 8.8
References
Advisory
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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