CVE Explorer
CVE-2026-20031
A vulnerability in the HTML Cascading Style Sheets (CSS) module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to improper error handling when splitting UTF-8 strings. An attacker could exploit this vulnerability by submitting a crafted HTML file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the scanning process.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Cisco Secure Endpoint","vendor":"Cisco","versions":[{"status":"affected","version":"7.0.5"},{"status":"affected","version":"6.2.19"},{"status":"affected","version":"7.3.3"},{"status":"affected","version":"7.2.13"},{"status":"affected","version":"6.1.5"},{"status":"affected","version":"6.3.1"},{"status":"affected","version":"6.2.5"},{"status":"affected","version":"7.3.5"},{"status":"affected","version":"6.2.1"},{"status":"affected","version":"7.2.7"},{"status":"affected","version":"7.1.1"},{"status":"affected","version":"6.3.5"},{"status":"affected","versio…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:8f6bd38cdb8c46675a50cebaa1394fa0bbcf0ccf5573651a3f95dc8e09e43b4d · sha256:36b6f570c4041564… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:8f6bd38cdb8c46675a50cebaa1394fa0bbcf0ccf5573651a3f95dc8e09e43b4d · sha256:36b6f570c4041564… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-248","description":"Uncaught Exception","lang":"en","type":"cwe"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:8f6bd38cdb8c46675a50cebaa1394fa0bbcf0ccf5573651a3f95dc8e09e43b4d · sha256:36b6f570c4041564… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"cisco-sa-clamav-css-Fn4QSZ","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-css-Fn4QSZ"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8f6bd38cdb8c46675a50cebaa1394fa0bbcf0ccf5573651a3f95dc8e09e43b4d · sha256:36b6f570c4041564… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.