CVE-2026-101038

CRITICAL 9.9

FAST FAC1200R MmtAtePrase stack-based overflow

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was determined in FAST FAC1200R 5.0_20201119_1.0.2. Affected by this vulnerability is the function MmtAtePrase of the component MmtAtePrase Parser. This manipulation causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-121 CWE-119
Vendor	fast
Product	fac1200r
Published	Sep 28, 2026
Last Updated	Sep 28, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

FAST / FAC1200R

5.0_20201119_1.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/410906 vuldb.com: https://vuldb.com/vuln/410906/cti vuldb.com: https://vuldb.com/cve/CVE-2026-101038 vuldb.com: https://vuldb.com/submit/927237 github.com: https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1200R-twlantask-MmtAtePrase-stack-overflow(1)/vul-find-FAST_FAC1200R-twlantask-MmtAtePrase-stack-overflow

Credits

🔍 xiaobor123 (VulDB User) VulDB CNA Team