CVE-2010-3434

CVE-2010-3434 is a critical-severity vulnerability in Clamav with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 7% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Clamav
• Published: 2010-09-30
• Last modified: 2026-06-16

Description

Buffer overflow in the find_stream_bounds function in pdf.c in libclamav in ClamAV before 0.96.3 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PDF document. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2010-3434?

Buffer overflow in the find_stream_bounds function in pdf.c in libclamav in ClamAV before 0.96.3 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PDF document. NOTE: some of these details are obtained from third party information.

How severe is CVE-2010-3434?

CVE-2010-3434 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-3434 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3434?

CVE-2010-3434 primarily affects Clamav. In total, 100 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3434?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2010-3434 published?

CVE-2010-3434 was published on 2010-09-30 and last updated on 2026-06-16.

References

• http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=blob_plain%3Bf=ChangeLog%3Bhb=clamav-0.96.3
• http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commit%3Bh=dc5143b4669ae39c79c9af50d569c28c798f33da
• http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
• http://security-tracker.debian.org/tracker/CVE-2010-3434
• http://support.apple.com/kb/HT4581
• http://www.openwall.com/lists/oss-security/2010/09/22/1
• http://www.openwall.com/lists/oss-security/2010/09/27/6
• http://www.openwall.com/lists/oss-security/2010/09/28/3
• http://www.openwall.com/lists/oss-security/2010/09/28/5
• http://www.vupen.com/english/advisories/2010/2455
• https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2226

Affected products (100)

• cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.01:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.02:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.3:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.03:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.05:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.9:rc1:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.10:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.12:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.13:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.14:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.15:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.20:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.21:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.22:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.23:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.24:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.51:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.52:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.53:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.54:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.60:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.60p:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.65:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.66:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.67:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.67-1:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.68:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.68.1:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.70:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.71:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.72:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.73:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.74:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.75:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.75.1:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.80:*:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.80:rc2:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.80:rc3:*:*:*:*:*:*
• cpe:2.3:a:clamav:clamav:0.80:rc4:*:*:*:*:*:*

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