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CVE-2006-4018

37
FAUCET Score

CVE-2006-4018 describes a heap-based buffer overflow vulnerability in the pefromupx function of Clam AntiVirus (ClamAV) versions 0.81 through 0.88.3. This flaw allows remote attackers to execute arbitrary code by crafting a malicious UPX-packed file with oversized section rsize values. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. While not listed on the KEV catalog, an exploit module is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
0.81CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.81:*:*:*:*:*:*:*
0.81CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.81:rc1:*:*:*:*:*:*
0.82CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.82:*:*:*:*:*:*:*
0.83CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.83:*:*:*:*:*:*:*
0.84CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.84:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
19.06%
Probability of exploitation in next 30 days
EPSS Percentile
97.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-28348 · Aug 7, 2006
This CVE's current EPSS score of 0.1906 is in the 96th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kolab.org / security/kolab-vendor-notice-10.txt
secunia.com / advisories/21368
Vendor Advisory
secunia.com / advisories/21374
Vendor Advisory
secunia.com / advisories/21433
Vendor Advisory
secunia.com / advisories/21443
Vendor Advisory
secunia.com / advisories/21457
Vendor Advisory
secunia.com / advisories/21497
Vendor Advisory
secunia.com / advisories/21562
Vendor Advisory
security.gentoo.org / glsa/glsa-200608-13.xml
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/28286
clamav.net / security/0.88.4.html
ExploitPatchVendor Advisory
debian.org / security/2006/dsa-1153
mandriva.com / security/advisories
novell.com / linux/security/advisories/2006_46_clamav.html
overflow.pl / adv/clamav_upx_heap.txt
ExploitPatchVendor Advisory
securityfocus.com / archive/1/442681/100/0/threaded
securityfocus.com / bid/19381
trustix.org / errata/2006/0046
vupen.com / english/advisories/2006/3175
Vendor Advisory
vupen.com / english/advisories/2006/3275
Vendor Advisory