CVE-2003-0048

CVE-2003-0048 is a medium-severity vulnerability in Putty with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

PuTTY 0.53b and earlier does not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steal the SSH credentials.

Frequently asked questions

What is CVE-2003-0048?
PuTTY 0.53b and earlier does not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steal the SSH credentials.
How severe is CVE-2003-0048?
CVE-2003-0048 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2003-0048 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0048?
CVE-2003-0048 primarily affects Putty. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0048?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0048 published?
CVE-2003-0048 was published on 2003-02-19 and last updated on 2026-06-16.

References

Affected products (4)

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