CVE-2018-0202
clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
Does this matter?
Lower severity and a low EPSS score (2.58%). Track it; it rarely justifies an emergency change on its own.
Description
clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 2.58% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- clamav/clamav · canonical/ubuntu linux · debian/debian linux
- Source
- psirt@cisco.com
EPSS moved from 5.1% on 21 September 2026 to 2.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://bugzilla.clamav.net/show_bug.cgi?id=11973Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11980Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-16Third Party Advisory
- https://usn.ubuntu.com/3592-1/Third Party Advisory
- https://usn.ubuntu.com/3592-2/Third Party Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11973Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11980Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201804-16Third Party Advisory
- https://usn.ubuntu.com/3592-1/Third Party Advisory
- https://usn.ubuntu.com/3592-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.