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CVE-2021-44449

25
FAUCET Score

CVE-2021-44449 is an out-of-bounds write vulnerability in JT Utilities (versions prior to V12.8.1.1) and JTTK (versions prior to V10.8.1.1) that allows an attacker to execute code by parsing a specially crafted JT file. This vulnerability has a high CVSS score of 7.8, indicating a significant risk with high impact on confidentiality, integrity, and availability, requiring user interaction for exploitation. Despite its severity, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.8.1.1CPE matchmatch criteria
cpe:2.3:a:siemens:jt_open_toolkit:*:*:*:*:*:*:*:*
< 12.8.1.1CPE matchmatch criteria
cpe:2.3:a:siemens:jt_utilities:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 50th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert-portal.siemens.com / productcert/pdf/ssa-396621.pdf
Vendor Advisory