CVE-2001-1436
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password,...
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password, which makes it easier for users with physical access to conduct dictionary attacks against the device password.
Exploit likelihood
What each source reports
NVD Score used
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password, which makes it easier for users with physical access to conduct dictionary attacks against the device password.
- Record
CVE-2001-1436- CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password, which makes it easier for users with physical access to conduct dictionary attacks against the device password.
- Record
CVE-2001-1436- Updated
- 2026-11-02
EUVDEUVD-2001-1416 No score
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password, which makes it easier for users with physical access to conduct dictionary attacks against the device password.
- Record
EUVD-2001-1416- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g6p6-xc86-g98v No score
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password,...
Dallas Semiconductor iButton DS1991 returns predictable values when given an incorrect password, which makes it easier for users with physical access to conduct dictionary attacks against the device password.
- Record
GHSA-g6p6-xc86-g98v- 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-2001-1436 is a medium vulnerability (CVSS 4.6) in Dallas Semiconductor Ibutton, published January 18, 2001. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. No source names a fixed version.