What’s Vulnerable › Vulnerabilities

CVE-2009-4495

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-01-13 · updated 2026-06-16
• Weakness: CWE-20

Description

Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.

Affected products

• yaws: 1.85

References

• http://www.securityfocus.com/archive/1/508830/100/0/threaded
• http://www.securityfocus.com/bid/37716
• http://www.ush.it/team/ush/hack_httpd_escape/adv.txt
• http://www.securityfocus.com/archive/1/508830/100/0/threaded
• http://www.securityfocus.com/bid/37716
• http://www.ush.it/team/ush/hack_httpd_escape/adv.txt

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