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Vulnerability details: VCID-jbkr-mxwa-aaaf
Vulnerability ID VCID-jbkr-mxwa-aaaf
Aliases CVE-2009-4128
Summary GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.
Status Published
Exploitability 0.5
Weighted Severity 6.5
Risk 3.2
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-287 Improper Authentication
System Score Found at
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epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2009-4128
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epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2009-4128
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epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2009-4128
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epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2009-4128
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epss 0.00085 https://api.first.org/data/v1/epss?cve=CVE-2009-4128
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rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=543153
cvssv2 7.2 https://nvd.nist.gov/vuln/detail/CVE-2009-4128
Reference id Reference type URL
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2009-4128.json
https://api.first.org/data/v1/epss?cve=CVE-2009-4128
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4128
https://exchange.xforce.ibmcloud.com/vulnerabilities/54210
http://www.openwall.com/lists/oss-security/2024/01/15/3
http://www.securityfocus.com/bid/36968
543153 https://bugzilla.redhat.com/show_bug.cgi?id=543153
555195 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555195
cpe:2.3:a:gnu:grub_2:1.97:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gnu:grub_2:1.97:*:*:*:*:*:*:*
CVE-2009-4128 https://nvd.nist.gov/vuln/detail/CVE-2009-4128
USN-868-1 https://usn.ubuntu.com/868-1/
No exploits are available.
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2009-4128
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Exploit Prediction Scoring System (EPSS)
Percentile 0.05235
EPSS Score 0.00035
Published At March 29, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.