What’s Vulnerable › Vulnerabilities

CVE-2026-101038: FAST FAC1200R MmtAtePrase stack-based overflow

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-28
• Weakness: CWE-119

Description

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.

Affected products

• FAST FAC1200R: 5.0_20201119_1.0.2

References

• 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
• https://vuldb.com/cve/CVE-2026-101038
• https://vuldb.com/submit/927237
• https://vuldb.com/vuln/410906
• https://vuldb.com/vuln/410906/cti

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