CVE-2017-8862
CVE-2017-8862 is a critical-severity vulnerability in Cohuhd 3960hd Firmware with a CVSS 3.x base score of 9.8. 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-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 1% (71st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Cohuhd 3960hd Firmware
- Published:
- Last modified:
Description
The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process, allowing an attacker to upload a specially crafted postinstall.sh file that will be executed with "root" privileges.
Frequently asked questions
- What is CVE-2017-8862?
- The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process, allowing an attacker to upload a specially crafted postinstall.sh file that will be executed with "root" privileges.
- How severe is CVE-2017-8862?
- CVE-2017-8862 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-8862 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-8862?
- CVE-2017-8862 affects Cohuhd 3960hd Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-8862?
- 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-2017-8862 published?
- CVE-2017-8862 was published on 2017-11-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:cohuhd:3960hd_firmware:-:*:*:*:*:*:*:*
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