CVE-2011-1327 — The Keystroke Encryption feature in Trend Micro Internet Security 2009 (aka Virus Buster 2009 and PC-cillin 2009) does not completely encrypt passwords, which allows local users to obtain sensitive information by leveraging a keylogger

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LOW

The Keystroke Encryption feature in Trend Micro Internet Security 2009 (aka Virus Buster 2009 and PC-cillin 2009) does not completely encrypt passwords, which allows local users to obtain sensitive information by leveraging a keylogger

Published May 20, 2011

2.1

LOW

CVSS 2.0

EPSS 0.23%

Description

The Keystroke Encryption feature in Trend Micro Internet Security 2009 (aka Virus Buster 2009 and PC-cillin 2009) does not completely encrypt passwords, which allows local users to obtain sensitive information by leveraging a keylogger.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.23% 0.00230

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00230

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.23% (0.00230)	12.55th	v5 (v2026.06.15)
Jun 15, 2026	0.23% (0.00230)	13.61th	v5 (v2026.06.15)
Mar 17, 2025	0.13% (0.00125)	29.26th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00045)	17.95th	v3 (v2023.03.01)
May 16, 2024	0.06% (0.00060)	24.96th	v3 (v2023.03.01)
Feb 8, 2024	0.06% (0.00060)	22.94th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00045)	12.50th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00890)	30.33th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00890)	28.64th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00890)	26.62th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00890)	12.04th	v2 (v2022.01.01)

Weaknesses (1)

CWE-310

References (3)

http://esupport.trendmicro.co.jp/Pages/JP-2079186.aspx
x_refsource_CONFIRM
http://jvn.jp/en/jp/JVN99175647/index.html
third-party-advisoryx_refsource_JVN
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000028
third-party-advisoryx_refsource_JVNDB

Link	Providers	Tags
http://esupport.trendmicro.co.jp/Pages/JP-2079186.aspx		x_refsource_CONFIRM
http://jvn.jp/en/jp/JVN99175647/index.html		third-party-advisoryx_refsource_JVN
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000028		third-party-advisoryx_refsource_JVNDB

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner jpcert

Published May 20, 2011

Updated Sep 17, 2024

Reserved Mar 9, 2011

Link CVE-2011-1327

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-1327

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-1327