Vulnerability details
CVE-2026-20347
Cisco Secure Endpoint
ClamAV Mach-O File Format Processing Memory Corruption Vulnerability
CVSS 3.1
7.5High
Official description
A vulnerability in the Mach-O file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in Mach-O files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted Mach-O file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (cisco) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Cisco | Cisco Secure Endpoint | 1.1.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.10.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.10.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.10.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.11.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.11.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.12.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.13.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.13.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.13.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.14.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.14.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.15.6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.16.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.16.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.16.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.16.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.17.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.17.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.17.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.18.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.18.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.19.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.20.8 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.21.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.21.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.21.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.21.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.22.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.22.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.22.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.22.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.22.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.23.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.23.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.24.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.25.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.25.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.25.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.26.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.26.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.27.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.27.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.27.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.6.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.7.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.8.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.8.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.8.4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.9.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 1.9.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.0.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.0.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.0.2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.1.0.14 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.10.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.10.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.11.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.2.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.3.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.4.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.5.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.6.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.7.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.8.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 2.9.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.0.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.0.9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.1.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.1.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.1.9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.2.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.2.19 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.2.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.2.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.2.9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.3.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.3.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.3.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 6.3.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.0.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.1.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.1.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.2.11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.2.13 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.2.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.2.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.2.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.13 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.15 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.3.9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.1.20425 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.1.20439 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.3.20679 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.4.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.1.20813 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.1.20833 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.13.21586 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.13.21598 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.15.21611 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.17.21680 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.19 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.20 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.21.21732 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 7.5.9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.0.1.21160 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.0.1.21164 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.3.21242 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.5.21322 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.7.21417 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.7.21512 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.1.7.21585 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.2.1.21612 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.2.1.21650 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.2.3.30119 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.2.4.30130 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.1.30298 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.1.30307 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.2.30317 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.4.30419 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.4.30467 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Secure Endpoint | 8.4.5.30483 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-08-07
- Last updated
- 2026-08-08
- State
- Published
- Assigner (CNA)
- cisco
Exploit prediction (EPSS)
0.55%
Probability of exploitation in 30 days
46.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-125Out-of-bounds Read