CVE-2008-7020 — McAfee SafeBoot Device Encryption 4 build 4750 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer

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LOW

McAfee SafeBoot Device Encryption 4 build 4750 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer

Published Aug 21, 2009

2.1

LOW

CVSS 2.0

EPSS 0.20%

Description

McAfee SafeBoot Device Encryption 4 build 4750 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.20% 0.00203

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

EPSS probability 0.00203

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 (9 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	0.20% (0.00203)	9.24th	v5 (v2026.06.15)
Jun 15, 2026	0.20% (0.00203)	10.22th	v5 (v2026.06.15)
Mar 17, 2025	0.03% (0.00035)	6.71th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00950)	32.28th	v2 (v2022.01.01)
Sep 10, 2022	0.95% (0.00950)	30.63th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00950)	28.61th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00950)	13.46th	v2 (v2022.01.01)

Weaknesses (1)

CWE-310

References (5)

http://seclists.org/fulldisclosure/2008/Sep/0378.html
mailing-listx_refsource_FULLDISC
http://secunia.com/advisories/31903
third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf
x_refsource_MISC
http://www.ivizsecurity.com/security-advisory-iviz-sr-08010.html
x_refsource_MISC
https://exchange.xforce.ibmcloud.com/vulnerabilities/45275
vdb-entryx_refsource_XF

Link	Providers	Tags
http://seclists.org/fulldisclosure/2008/Sep/0378.html		mailing-listx_refsource_FULLDISC
http://secunia.com/advisories/31903		third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf		x_refsource_MISC
http://www.ivizsecurity.com/security-advisory-iviz-sr-08010.html		x_refsource_MISC
https://exchange.xforce.ibmcloud.com/vulnerabilities/45275		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Aug 21, 2009

Updated Aug 7, 2024

Reserved Aug 21, 2009

Link CVE-2008-7020

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2008-7020

Red Hat

Severity n/a

Public date n/a

Links CVE-2008-7020