HOMEVULNERABILITIESCVE-2020-12358
MEDIUM

CVE-2020-12358

CWE-787Published: June 9, 2021· Updated: Jun 17, 2026

4.4
CVSS v3.1

Official Description

Out of bounds write in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable denial of service via local access.

NVD Source

Technical Analysis

CVE-2020-12358 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.4.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

intel539 product(s)
bioscore i3-l13g4core i5-l16g7core i7-10510ucore i7-10510ycore i7-1060g7core i7-1060ng7core i7-10610ucore i7-1065g7core i7-1068ng7core i7-10700core i7-10700e+527
netapp7 product(s)
cloud backupaff biose-series biosfas bioshci compute node bioshci storage node biossolidfire bios
siemens2 product(s)
simatic ipc547g firmwaresimatic ipc547g
Source: NVD CPE · 548 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
PATCHhttps://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
ADVISORYhttps://security.netapp.com/advisory/ntap-20210702-0002/
ADVISORYhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00463.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20210702-0002/
ADVISORYhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00463.html

All References (6)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdfPatch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210702-0002/Third Party Advisory
→
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00463.htmlVendor Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdfPatch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210702-0002/Third Party Advisory
→
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00463.htmlVendor Advisory

Quick Facts

CVE IDCVE-2020-12358
CVSS Score4.4 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
Affected3 vendor(s)
PublishedJun 9, 2021

Related CVEs (CWE-787)

CVE-2014-1478
10.0
CVE-2015-5105
10.0
CVE-2012-0751
10.0
CVE-2012-3957
10.0
CVE-2013-5610
10.0
CVE-2015-5096
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-12358 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2020-12358·NVD