HIGH
Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values
Published Aug 8, 2006
7.5
HIGHCVSS 2.0
EPSS 19.40%
Description
Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values.
Affected products
No data.
OR
- 0.81
- 0.81
- 0.82
- 0.83
- 0.84
- 0.84
- 0.84
- 0.85
- 0.85.1
- 0.86
- 0.86
- 0.86.1
- 0.86.2
- 0.87
- 0.87.1
- 0.88
- 0.88.1
- 0.88.2
- 0.88.3
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
19.40% 0.19396
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.19396
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 19.40% (0.19396) | 97.28th | v5 (v2026.06.15) |
| Jul 6, 2026 | 19.06% (0.19058) | 96.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 18.00% (0.18001) | 96.81th | v5 (v2026.06.15) |
| Dec 28, 2025 | 44.63% (0.44627) | 97.44th | v4 (v2025.03.14) |
| Dec 27, 2025 | 40.91% (0.40912) | 97.25th | v4 (v2025.03.14) |
| Oct 28, 2025 | 44.63% (0.44627) | 97.41th | v4 (v2025.03.14) |
| Oct 27, 2025 | 40.91% (0.40912) | 97.22th | v4 (v2025.03.14) |
| Oct 1, 2025 | 44.63% (0.44627) | 97.49th | v4 (v2025.03.14) |
| Jul 30, 2025 | 40.91% (0.40912) | 97.26th | v4 (v2025.03.14) |
| May 8, 2025 | 44.04% (0.44036) | 97.35th | v4 (v2025.03.14) |
| Mar 30, 2025 | 35.91% (0.35911) | 96.76th | v4 (v2025.03.14) |
| Mar 29, 2025 | 41.85% (0.41846) | 96.15th | v4 (v2025.03.14) |
| Mar 17, 2025 | 35.07% (0.35074) | 96.67th | v4 (v2025.03.14) |
| Dec 17, 2024 | 61.78% (0.61777) | 97.96th | v3 (v2023.03.01) |
| Nov 12, 2023 | 87.49% (0.87490) | 98.34th | v3 (v2023.03.01) |
| May 5, 2023 | 87.64% (0.87643) | 98.09th | v3 (v2023.03.01) |
| Mar 28, 2023 | 87.76% (0.87761) | 98.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 87.91% (0.87914) | 98.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 47.94% (0.47944) | 98.60th | v2 (v2022.01.01) |
| Feb 4, 2022 | 47.94% (0.47944) | 98.10th | v2 (v2022.01.01) |
Weaknesses (1)
References (21)
- http://kolab.org/security/kolab-vendor-notice-10.txt x_refsource_CONFIRM
- http://secunia.com/advisories/21368 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21374 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21433 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21443 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21457 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21497 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/21562 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.gentoo.org/glsa/glsa-200608-13.xml vendor-advisoryx_refsource_GENTOO
- http://securitytracker.com/id?1016645 vdb-entryx_refsource_SECTRACK
- http://www.clamav.net/security/0.88.4.html x_refsource_CONFIRMExploitPatchVendor Advisory
- http://www.debian.org/security/2006/dsa-1153 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:138 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2006_46_clamav.html vendor-advisoryx_refsource_SUSE
- http://www.overflow.pl/adv/clamav_upx_heap.txt x_refsource_MISCExploitPatchVendor Advisory
- http://www.securityfocus.com/archive/1/442681/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/19381 vdb-entryx_refsource_BID
- http://www.trustix.org/errata/2006/0046/ vendor-advisoryx_refsource_TRUSTIX
- http://www.vupen.com/english/advisories/2006/3175 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2006/3275 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28286 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 8, 2006
Updated Aug 7, 2024
Reserved Aug 8, 2006
Link CVE-2006-4018
CISA Vulnrichment
Updated n/a