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CVE-2003-0048

18
FAUCET Score

CVE-2003-0048 describes a vulnerability in PuTTY versions 0.53b and earlier where logon credentials, including plaintext passwords, are not properly cleared from memory. This allows an attacker with local memory access to steal SSH credentials. With a CVSS score of 4.6, this vulnerability has a low attack complexity and requires local access, but can lead to confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation, no known public exploits, and it is not on the KEV catalog, the vulnerability has garnered significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
0.48CPE matchmatch criteria
cpe:2.3:a:putty:putty:0.48:*:*:*:*:*:*:*
0.49CPE matchmatch criteria
cpe:2.3:a:putty:putty:0.49:*:*:*:*:*:*:*
0.53CPE matchmatch criteria
cpe:2.3:a:putty:putty:0.53:*:*:*:*:*:*:*
0.53bCPE matchmatch criteria
cpe:2.3:a:putty:putty:0.53b:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 53rd percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
idefense.com / advisory/01.28.03.txt
PatchVendor Advisory
securityfocus.com / bid/6724
securitytracker.com / id