High severity · published Sep 14, 2026
CVE-2026-82770
Buffer overflow vulnerability exists in Contec RP-WAH-SR Series
8.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RP
RP-WAH-SR1 · Contec Co., Ltd.
before 1.03 · source: vendor
RP
RP-WAH-SR12 · Contec Co., Ltd.
before 1.02 · source: vendor
RP
RP-WAH-SR2 · Contec Co., Ltd.
before 1.03 · source: vendor
RP
RP-WAH-SR22 · Contec Co., Ltd.
before 1.02 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82770
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82770
jvn.jp
https://jvn.jp/en/vu/JVNVU99009004/
www.contec.com
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf
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4.3
CVE-2026-82764
Cross-site request forgery vulnerability exists in multiple Contec products