HOMEVULNERABILITIESCVE-2021-27488
HIGH

CVE-2021-27488

CWE-787Published: May 27, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Datakit Software libraries CatiaV5_3dRead, CatiaV6_3dRead, Step3dRead, Ug3dReadPsr, Jt3dReadPsr modules in KeyShot Versions v10.1 and prior lack proper validation of user-supplied data when parsing CATPart files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process.

NVD Source

Technical Analysis

CVE-2021-27488 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

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.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

datakit1 product(s)
crosscadware
luxion1 product(s)
keyshot
siemens4 product(s)
solid edge se2020 firmwaresolid edge se2020solid edge se2021 firmwaresolid edge se2021
Source: NVD CPE · 6 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

ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdf
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-21-145-01
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-563/
ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdf
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-21-145-01
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-563/

All References (6)

→
https://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdfThird Party Advisory
→
https://us-cert.cisa.gov/ics/advisories/icsa-21-145-01Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-21-563/Third Party Advisory · VDB Entry
→
https://cert-portal.siemens.com/productcert/pdf/ssa-119468.pdfThird Party Advisory
→
https://us-cert.cisa.gov/ics/advisories/icsa-21-145-01Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-21-563/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-27488
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected3 vendor(s)
PublishedMay 27, 2021

Related CVEs (CWE-787)

CVE-2015-0235
10.0
CVE-2004-0574
10.0
CVE-2019-5684
10.0
CVE-2019-5049
10.0
CVE-2004-1287
10.0
CVE-2018-10718
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-27488 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.COM. CVE data is provided under the NVD usage policy.
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