Buffer overflow in Dell BIOS on Dell Latitude D###, E####, XT2, and Z600 devices, and Dell Precision M#### devices, allows local users to bypass intended BIOS signing requirements and install arbitrary BIOS images by leveraging administrative privileges and providing a crafted rbu_packet.pktNum value in conjunction with a crafted rbu_packet.pktSize value
Published Aug 28, 2013
7.6
HIGHCVSS 2.0
EPSS 2.59%
Description
Buffer overflow in Dell BIOS on Dell Latitude D###, E####, XT2, and Z600 devices, and Dell Precision M#### devices, allows local users to bypass intended BIOS signing requirements and install arbitrary BIOS images by leveraging administrative privileges and providing a crafted rbu_packet.pktNum value in conjunction with a crafted rbu_packet.pktSize value.
Affected products
No data.
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.59% (0.02589) | 84.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.59% (0.02589) | 83.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.11% (0.01111) | 76.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00086) | 38.21th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.06% (0.00059) | 24.94th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.06% (0.00059) | 22.93th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.05% (0.00050) | 16.22th | v3 (v2023.03.01) |
| Aug 27, 2023 | 0.07% (0.00070) | 28.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00117) | 43.96th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (5)
- http://www.kb.cert.org/vuls/id/912156 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.kb.cert.org/vuls/id/BLUU-99HSLA x_refsource_CONFIRMUS Government Resource
- https://media.blackhat.com/us-13/US-13-Butterworth-BIOS-Security-Slides.pdf x_refsource_MISCExploit
- https://media.blackhat.com/us-13/US-13-Butterworth-BIOS-Security-WP.pdf x_refsource_MISCExploit
- https://www.blackhat.com/us-13/archives.html#Butterworth x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://www.kb.cert.org/vuls/id/912156 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.kb.cert.org/vuls/id/BLUU-99HSLA | x_refsource_CONFIRMUS Government Resource | |
| https://media.blackhat.com/us-13/US-13-Butterworth-BIOS-Security-Slides.pdf | x_refsource_MISCExploit | |
| https://media.blackhat.com/us-13/US-13-Butterworth-BIOS-Security-WP.pdf | x_refsource_MISCExploit | |
| https://www.blackhat.com/us-13/archives.html#Butterworth | x_refsource_MISC |
Change history (0)
No recorded changes yet.