CVE-2023-20197
No exploitation reported by the sources we read.
- Published2023-08-16
- Fixed in8.1.7.21585 · 7.5.13.21586 · 1.22.0
- WeaknessCWE-835
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability in the filesystem image parser for Hierarchical File System Plus (HFS+) 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 an incorrect check for completion when a file is decompressed, which may result in a loop condition that could cause the affected software to stop responding. An attacker could exploit this vulnerability by submitting a crafted HFS+ filesystem image to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to stop responding, resulting in a DoS condition on the affected software and consuming available system resources. For a description of this vulnerability, see the ClamAV blog .
Timeline
dates in UTC- 2023-08-1622:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-20197?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-20197?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.x | ≥ 8.0.1.21160, < 8.1.7.21585 | 8.1.7.21585 | NVD |
| 7.5 | < 7.5.13.21586 | 7.5.13.21586 | NVD |
| 1.22 | < 1.22.0 | 1.22.0 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.8 | < 3.8.0 | 3.8.0 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 38.x | = 38 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Cisco secure endpoint to 8.1.7.21585 · 7.5.13.21586 · 1.22.0
Advisories and patches
- sec.cloudapps.cisco.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- CNACVSS 3.17.5read 2026-10-23
- NVDCVSS 3.17.5read 2026-10-23
- CNAweakness (CWE)CWE-835read 2026-10-23
- NVDweakness (CWE)CWE-835read 2026-10-23
- FIRST EPSSEPSS score1.2 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2023-08-16
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-20197?
Is CVE-2023-20197 actively exploited?
What is the CVSS score for CVE-2023-20197?
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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.