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CVE-2009-4611

20
FAUCET Score

CVE-2009-4611 describes a vulnerability in Mort Bay Jetty versions 6.x through 6.1.22 and 7.0.0 where unsanitized backtrace data, specifically non-printable characters, can be written. This flaw allows remote attackers to manipulate a window's title or potentially execute arbitrary commands or overwrite files by injecting escape sequences into HTTP requests. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.0CPE matchmatch criteria
cpe:2.3:a:mortbay:jetty:6.0.0:*:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:mortbay:jetty:6.0.0:alpha0:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:mortbay:jetty:6.0.0:alpha1:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:mortbay:jetty:6.0.0:alpha2:*:*:*:*:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:mortbay:jetty:6.0.0:alpha3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.18%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0318 is in the 76th percentile among its peer group of 51,455 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.mortbay.jetty:jettyFixed in: 6.1.23
mavenpatch availablevia ghsa
Product: org.mortbay.jetty:jettyFixed in: 7.0.2

Vendor Advisories (2)

mavenGHSA-6jxp-7g74-2rc3high

Improper input validation in Mort Bay Jetty

May 2, 2022
redhatCVE-2009-4611Moderate

jetty: escape sequence injection to stack traces

Oct 25, 2009

References

securityfocus.com / archive/1/508830/100/0/threaded
ush.it / team/ush/hack_httpd_escape/adv.txt
Exploit
ush.it / team/ush/hack-jetty6x7x/jetty-adv.txt
Exploit