Medium severity · published Jun 11, 2021
CVE-2021-28211
A heap overflow in LzmaUefiDecompressGetInfo function in EDK II
6.7
CVSS
0.4%
EPSS
No
On KEV
Description
A heap overflow in LzmaUefiDecompressGetInfo function in EDK II.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Edk2 · Tianocore
202008 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28211
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28211
Exploit
https://bugzilla.tianocore.org/show_bug.cgi?id=1816
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