CVE-2009-4488

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

12.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 95.9% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2010-01-13 20:00Z16 YR AGO

Last updated

2025-01-21 16:48Z1 YR AGO

Reserved

2009-12-30

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-1284Improper Validation of Specified Quantity in InputBase
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

5aa7d2950985434480826f2ff6be0ca70b0cbab4dd1048223ce3eebe84952dad

• www.ush.ithttp://www.ush.it/team/ush/hack_httpd_escape/adv.txtx_refsource_MISC
• www.securityfocus.com37713http://www.securityfocus.com/bid/37713vdb-entryx_refsource_BID
• www.securityfocus.com20100110 Nginx, Varnish, Cherokee, thttpd, mini-httpd, WEBrick, Orion, AOLserver, Yaws and Boa log escape sequence injectionhttp://www.securityfocus.com/archive/1/508830/100/0/threadedmailing-listx_refsource_BUGTRAQ