No exploitation reportedFix available

CVE-2021-34327

Q: Is CVE-2021-34327 actively exploited?

Active exploitation of CVE-2021-34327 has not been confirmed. Its EPSS score was 2.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2021-34327?

CVE-2021-34327 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2021-07-13
Fixed inse2021
WeaknessCWE-122 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability has been identified in JT2Go (All versions < V13.2), Solid Edge SE2021 (All Versions < SE2021MP5), Teamcenter Visualization (All versions < V13.2). The plmxmlAdapterSE70.dll library in affected applications lacks proper validation of user-supplied data when parsing ASM files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13423)

Timeline

dates in UTC

2021-07-1311:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-34327?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-34327?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Siemens solid edge

Branch	Affected	Fixed in	Source
—	< se2021	se2021	NVD
—	= se2021	no fix published	NVD

Siemens jt2go

Branch	Affected	Fixed in	Source
13.2	< 13.2.0	13.2.0	NVD

Siemens teamcenter visualization

Branch	Affected	Fixed in	Source
13.2	< 13.2.0	13.2.0	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-21-194-08 CISA1 known affected
Siemens Solid Edge
Solid Edge SE2021
ICSA-21-194-15 CISA2 known affected
ICSA-21-194-15_Siemens JT2Go and Teamcenter Visualization
Teamcenter Visualization: All versions prior to v13.2 · JT2Go: All versions prior to v13.2

Full record on NVD

Fix

Update Siemens solid edge to se2021
Vendor fix CISA ICSA-21-194-08 · 1 productUpdate to SE2021MP5 or later version
Mitigation from the vendor CISA ICSA-21-194-08 · 1 productAvoid to open untrusted files from unknown sources in Solid Edge
Mitigation from the vendor CISA ICSA-21-194-15 · 2 productsAs a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens Operational Guidelines for Industrial Secur…
Mitigation from the vendor CISA ICSA-21-194-15 · 2 productsJT2Go: Update to v13.2
Mitigation from the vendor CISA ICSA-21-194-15 · 2 productsTeamcenter Visualization: Update to v13.2 (login required)

Advisories and patches

cert-portal.siemens.comVendor Advisory
cert-portal.siemens.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
CNAweakness (CWE)CWE-122read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score2.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2021-07-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-34327?

Is CVE-2021-34327 actively exploited?

Active exploitation of CVE-2021-34327 has not been confirmed. Its EPSS score was 2.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-34327?

CVE-2021-34327 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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