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CVE-2026-82770

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-16
• Weakness: CWE-120

Description

Buffer overflow vulnerability exists in Contec RP-WAH-SR Series. If a remote attacker sends a specially crafted request to the product's web service, an arbitrary program may be executed.

Affected products

• Contec Co., Ltd. RP-WAH-SR1: before 1.03 — fixed in 1.03
• Contec Co., Ltd. RP-WAH-SR12: before 1.02 — fixed in 1.02
• Contec Co., Ltd. RP-WAH-SR2: before 1.03 — fixed in 1.03
• Contec Co., Ltd. RP-WAH-SR22: before 1.02 — fixed in 1.02

How to fix

Upgrade to a fixed version: Contec Co., Ltd. RP-WAH-SR1 1.03; Contec Co., Ltd. RP-WAH-SR12 1.02; Contec Co., Ltd. RP-WAH-SR2 1.03; Contec Co., Ltd. RP-WAH-SR22 1.02. Check the vendor advisory for mitigations.

References

• https://jvn.jp/en/vu/JVNVU99009004/
• https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf

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