A vulnerability has been identified in ModelSim (All versions < V2024.3), Questa (All versions < V2024.3).

published 2024-10-08 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-42309

cvss: 6.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits: 0; none known

A vulnerability has been identified in ModelSim (All versions < V2024.3), Questa (All versions < V2024.3). gdb.exe in affected applications allows a specific executable file to be loaded from the current working directory. This could allow an authenticated local attacker to inject arbitrary code and escalate privileges in installations where administrators or processes with elevated privileges launch gdb.exe from a user-writable directory.

Patch / fix

fixed in 2

Siemens ModelSim 2024.3, V2024.3
Siemens Questa 2024.3, V2024.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-284-05 updated 2025-05-06 cvss 6.7

Siemens Questa and ModelSim

Siemens ModelSim <V2024.3 Siemens Questa <V2024.3
affected: fixed in V2024.3, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-10-08)

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.7	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CNA	4.0	5.4	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA	4.0	5.4	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

Siemens ModelSim
Siemens Questa

Classification

Weakness

CWE-427 Uncontrolled Search Path Element

References

cert-portal.siemens.com /productcert/html/ssa-426509.html
third-party-advisory

Sources

CVE List CVE-2024-47195
NVD CVE-2024-47195

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary