CVE-2020-7704
Prototype Pollution
The package linux-cmdline before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
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
CVE List Score used
Prototype Pollution
The package linux-cmdline before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
CVE-2020-7704- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2022-1956
The package linux-cmdline before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
EUVD-2022-1956- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2c29-wc65-4cx9
linux-cmdline is vulnerable to Prototype Pollution via the constructor
The package linux-cmdline is a parser for Linux kernel command line arguments. Versions before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
GHSA-2c29-wc65-4cx9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-1321
- Updated
- 2026-11-02
NVD
The package linux-cmdline before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
CVE-2020-7704- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSV
The package linux-cmdline before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
CVE-2020-7704- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-2c29-wc65-4cx9
linux-cmdline is vulnerable to Prototype Pollution via the constructor
The package linux-cmdline is a parser for Linux kernel command line arguments. Versions before 1.0.1 are vulnerable to Prototype Pollution via the constructor.
- Record
GHSA-2c29-wc65-4cx9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1321, CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linux-cmdlinenpm |
before 1.0.1 | 1.0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7704 is a critical vulnerability (CVSS 9.8) in Linux-cmdline Project Linux-cmdline, published August 17, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.70%, the 86th percentile. Fixed in linux-cmdline 1.0.1.