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Case File

CVE-2009-4488

CRITICAL · CVSS 9.8 EPSS 12.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2010-01-13 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 12.8% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2009-4488
Severity
CRITICAL
CVSS
9.8
EPSS
12.76%

Original NVD Description

Varnish 2.0.6 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. NOTE: the vendor disputes the significance of this report, stating that "This is not a security problem in Varnish or any other piece of software which writes a logfile. The real problem is the mistaken belief that you can cat(1) a random logfile to your terminal safely.