CVE-2019-10977
CVE-2019-10977 is a high-severity vulnerability in Mitsubishielectric Qj71e71-100 Firmware with a CVSS 3.x base score of 7.5. 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-755.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 7.8
- EPSS exploit prediction: 4% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-755
- Affected product: Mitsubishielectric Qj71e71-100 Firmware
- Published:
- Last modified:
Description
In Mitsubishi Electric MELSEC-Q series Ethernet module QJ71E71-100 serial number 20121 and prior, an attacker could send crafted TCP packets against the FTP service, forcing the target devices to enter an error mode and cause a denial-of-service condition.
Frequently asked questions
- What is CVE-2019-10977?
- In Mitsubishi Electric MELSEC-Q series Ethernet module QJ71E71-100 serial number 20121 and prior, an attacker could send crafted TCP packets against the FTP service, forcing the target devices to enter an error mode and cause a denial-of-service condition.
- How severe is CVE-2019-10977?
- CVE-2019-10977 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2019-10977 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-10977?
- CVE-2019-10977 affects Mitsubishielectric Qj71e71-100 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-10977?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2019-10977 published?
- CVE-2019-10977 was published on 2019-05-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:mitsubishielectric:qj71e71-100_firmware:*:*:*:*:*:*:*:*
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