CVE-2001-0157: Debugging utility in the backdoor mode of Palm OS 3.5.2 and earlier allows attackers with physical access to a

Routine

MEDIUM 4.6MITIGATE

CVE-2001-0157 is a medium-severity flaw (CVSS 4.6) affecting palm os. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Debugging utility in the backdoor mode of Palm OS 3.5.2 and earlier allows attackers with physical access to a Palm device to bypass access restrictions and obtain passwords, even if the system lockout mechanism is enabled.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Published	2001-06-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: palm

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2001-06-02 04:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

palm palm os MITIGATE

Affected: 3.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.5.2

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2001-0157?

palm os: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0157 being exploited?

CVE-2001-0157 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2001-0157 affect?

CVE-2001-0157 affects palm os. Severity is medium (CVSS 4.6). Debugging utility in the backdoor mode of Palm OS 3.5.2 and earlier allows attackers with physical access to a Palm device to bypass access restrictions and obtain passwords, even if the system lockout mechanism is enabled.

How urgent is CVE-2001-0157?

Priority 35/100. Public exploit reference

Related CVEs

CVE-2000-1008 MEDIUM 4.6 UPGRADE PalmOS 3.5.2 and earlier uses weak encryption to store the user password, which allows attackers with physical
CVE-2007-4213 HIGH 7.1 MITIGATE Palm OS on Treo 650, 680, 700p, and 755p Smart phones allows remote attackers to cause a denial of service (de
CVE-2002-0116 MEDIUM 5.0 MITIGATE Palm OS 3.5h and possibly other versions, as used in Handspring Visor and Xircom products, allows remote attac
CVE-2001-1438 MEDIUM 5.0 MITIGATE MITIGATE Handspring Visor 1.0 and 1.0.1 with the VisorPhone Springboard module installed allows remote attackers to cau

References

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