CVE-2017-8862
The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process,...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-8862- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-8862- Updated
- 2026-11-02
EUVDEUVD-2017-17804 No score
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.
- Record
EUVD-2017-17804- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r534-2r4v-gfqv
The webupgrade function on the Cohu 3960HD does not verify the firmware upgrade files or process,...
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.
- Record
GHSA-r534-2r4v-gfqv- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-8862 is a critical vulnerability (CVSS 9.8) in Cohuhd 3960hd Firmware, published November 22, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 74th percentile. No source names a fixed version.