CVE-2023-20032
CVE-2023-20032 is a critical-severity vulnerability in Cisco Secure Endpoint with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 29% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 29% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Cisco Secure Endpoint
- Published:
- Last modified:
Description
On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].
Frequently asked questions
- What is CVE-2023-20032?
- On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].
- How severe is CVE-2023-20032?
- CVE-2023-20032 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-20032 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-20032?
- CVE-2023-20032 primarily affects Cisco Secure Endpoint. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-20032?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-20032 published?
- CVE-2023-20032 was published on 2023-03-01 and last updated on 2026-06-17.
References
Affected products (10)
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:*
- cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:web_security_appliance:*:*:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:1.0.0:-:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:1.0.0:rc:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:1.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*
More vulnerabilities in Cisco Secure Endpoint
- CVE-2022-20770 — High (CVSS 8.6): On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2…
- CVE-2026-20215 — High (CVSS 7.5): A vulnerability in the 7z file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS…
- CVE-2026-20214 — High (CVSS 7.5): A vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS…
- CVE-2026-20213 — High (CVSS 7.5): A vulnerability in the PE file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS…
- CVE-2024-20290 — High (CVSS 7.5): A vulnerability in the OLE2 file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a…
- CVE-2023-20212 — High (CVSS 7.5): A vulnerability in the AutoIt module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of…
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