CVE-2021-27381

mediumpriority · track · 31EPSS 0.009 · 61 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.94% (61st) EPSS
CVSS 6.8 · medium
Is it mine?
10 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in Solid Edge SE2020 (All Versions < SE2020MP13), Solid Edge SE2021 (All Versions < SE2021MP3). Affected applications lack proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds read past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12534)

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedSolid Edge SE2020siemens_psirt

    Update to SE2020MP13 or later version

  • FixedSolid Edge SE2021siemens_psirt

    Update to SE2021MP3 or later version

  • FixedSolid Edge SE2020cisa_csaf_ot

    Update to SE2020MP13 or later version

  • FixedSolid Edge SE2021cisa_csaf_ot

    Update to SE2021MP3 or later version

  • MitigationSolid Edge SE2020siemens_psirt

    Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity

  • MitigationSolid Edge SE2021siemens_psirt

    Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity

  • MitigationSolid Edge SE2020cisa_csaf_ot

    Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity

  • MitigationSolid Edge SE2021cisa_csaf_ot

    Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity

02

cvss

Technical severity, 0–10. One row per scoring source.

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USCWE-125USCWE-125US
04

affected products (10)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • SSA-715184SSA-715184: Multiple File Parsing Vulnerabilities in Solid Edge2021-03-09csaf · siemens_psirtDE

    Siemens has released new versions for Solid Edge to fix multiple vulnerabilities that could be triggered when the application reads files in different file formats (PAR, DFT, XML extensions). If a user is tricked to open a malicious file with the affected application, this could lead to a crash, and potentially also to arbitrary code execution or data extraction on the target host system. Siemens recommends to update to the latest version and to avoid opening of untrusted files from unknown sources. Please refer to SSA-574442 for further information regarding latest version update.

  • ICSA-21-068-09Siemens Solid Edge File Parsing2021-03-09icsa · cisa_csaf_otUS

    Siemens has released new versions for Solid Edge to fix multiple vulnerabilities that could be triggered when the application reads files in different file formats (PAR, DFT, XML extensions). If a user is tricked to open a malicious file with the affected application, this could lead to a crash, and potentially also to arbitrary code execution or data extraction on the target host system. Siemens recommends to update to the latest version and to avoid opening of untrusted files from unknown sources. Please refer to SSA-574442 for further information regarding latest version update.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdsiemens_psirtNVDCVE.orgMITRE
published 2021-03-15modified 2026-06-17
08

references (7)

External citations — patches, advisories, analysis.

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