What’s Vulnerable › Vulnerabilities

CVE-2026-101354: FAST FAC1203R MmtAtePrase _tWlanTask stack-based overflow

• Severity: critical (CVSS 9.6 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: 2026-09-29 · updated 2026-09-29
• Weakness: CWE-119

Description

A security flaw has been discovered in FAST FAC1203R 20200116_2.0.4. The affected element is the function _tWlanTask of the component MmtAtePrase Parser. Performing a manipulation results in stack-based buffer overflow. The attacker must have access to the local network to execute the attack. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• FAST FAC1203R: 20200116_2.0.4

References

• https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow(1)/vul-find-FAST_FAC1203R-twlantask-MmtAtePrase-stack-overflow
• https://vuldb.com/cve/CVE-2026-101354
• https://vuldb.com/submit/927238
• https://vuldb.com/vuln/411088
• https://vuldb.com/vuln/411088/cti

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