CVE-2020-26997Public exploit

Code execution via unchecked PAR pointer

Published Apr 22, 2021 · Updated Aug 4, 2024

Untrusted pointer dereference in Solid Edge SE2020 and SE2021 allows remote attackers to execute code via malicious PAR files. The PAR parser dereferences a user-supplied value without validating it as a safe pointer, corrupting process memory. Exploitation requires a victim to open a crafted PAR file, after which arbitrary code runs in the current process context and the application can crash.

CVSS severity7.8
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in Solid Edge SE2020 and SE2021 allows remote attackers to execute code via malicious PAR files. The PAR parser dereferences a user-supplied value without validating it as a safe pointer, corrupting process memory. Exploitation requires a victim to open a crafted PAR file, after which arbitrary code runs in the current process context and the application can crash.

The record

CVE
CVE-2020-26997
Published
Apr 22, 2021
Updated
Aug 4, 2024
Vendor
Siemens
Product
Solid Edge
Classifications
CWE-119, CWE-822, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions < SE2020MP13
  2. Affected versionversion=All versions < SE2020MP14
  3. Affected versionversion=All Versions < SE2021MP4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · Solid Edgeversion=All versions < SE2020MP13; version=All versions < SE2020MP14; version=All Versions < SE2021MP4

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
7.8Siemens AGCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-822Untrusted Pointer Dereference
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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