CVE-2023-1935
CVE-2023-1935 is a critical-severity vulnerability in Emerson Roc809 Firmware with a CVSS 3.x base score of 9.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.
Key facts
- Severity: Critical (CVSS 3.x base score 9.4)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Emerson Roc809 Firmware
- Published:
- Last modified:
Description
ROC800-Series RTU devices are vulnerable to an authentication bypass, which could allow an attacker to gain unauthorized access to data or control of the device and cause a denial-of-service condition.
Frequently asked questions
- What is CVE-2023-1935?
- ROC800-Series RTU devices are vulnerable to an authentication bypass, which could allow an attacker to gain unauthorized access to data or control of the device and cause a denial-of-service condition.
- How severe is CVE-2023-1935?
- CVE-2023-1935 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
- Is CVE-2023-1935 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-1935?
- CVE-2023-1935 primarily affects Emerson Roc809 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-1935?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-1935 published?
- CVE-2023-1935 was published on 2023-08-02 and last updated on 2026-06-17.
References
Affected products (5)
- cpe:2.3:o:emerson:roc809_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:emerson:roc827_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:emerson:roc809l_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:emerson:roc827l_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:emerson:dl8000_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Emerson Roc809 Firmware
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Other CWE-287 (Improper Authentication) vulnerabilities
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- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
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