CVE-2003-0069

CVE-2003-0069 is a high-severity vulnerability in Putty with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The PuTTY terminal emulator 0.53 allows attackers to modify the window title via a certain character escape sequence and then insert it back to the command line in the user's terminal, e.g. when the user views a file containing the malicious sequence, which could allow the attacker to execute arbitrary commands.

Frequently asked questions

What is CVE-2003-0069?
The PuTTY terminal emulator 0.53 allows attackers to modify the window title via a certain character escape sequence and then insert it back to the command line in the user's terminal, e.g. when the user views a file containing the malicious sequence, which could allow the attacker to execute arbitrary commands.
How severe is CVE-2003-0069?
CVE-2003-0069 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0069 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0069?
CVE-2003-0069 affects Putty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0069?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0069 published?
CVE-2003-0069 was published on 2003-03-18 and last updated on 2026-06-16.

References

Affected products (1)

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