The cli_pdf function in libclamav/pdf.c in ClamAV before 0.96.1 allows remote attackers to cause a denial of service (crash) via a malformed PDF file, related to an inconsistency in the calculated stream length and the real stream length.
Severity
Medium 4.3
Published
26 May 2010
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.9% in the next 30 daysHigher than 87% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Sources
NVD
Affected software
Software
Affected versions
ClamAVServers and applications · cpe:a:clamav:clamav