CVE-2021-44435: siemens jt_open_toolkit Stack-based Buffer Overflow
Vulnerability summary
CVE-2021-44435 is a high (CVSS 7.8) Stack-based Buffer Overflow vulnerability in siemens jt_open_toolkit. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities.
Timeline
- 14-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected products is vulnerable to stack based buffer overflow while parsing specially crafted JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-14903)
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
+0.03 pp
From 0.87% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Siemens3 products
- jt_open_toolkit< 11.1.1.0
- jt_utilitiesAll versions < V13.1.1.0 | < 13.1.1.0
- jttkAll versions < V11.1.1.0
1 vendor · 3 products