How severe is CVE-2023-20212?

CVE-2023-20212 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-20212 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20212?

CVE-2023-20212 primarily affects Cisco Secure Endpoint. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20212?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-20212 published?

CVE-2023-20212 was published on 2023-08-18 and last updated on 2026-06-17.

CVE-2023-20212

CVE-2023-20212 is a high-severity vulnerability in Cisco Secure Endpoint with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-825.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-825
Affected product: Cisco Secure Endpoint
Published: 2023-08-18
Last modified: 2026-06-17

Description

A vulnerability in the AutoIt 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 a logic error in the memory management of an affected device. An attacker could exploit this vulnerability by submitting a crafted AutoIt file to be scanned by ClamAV on the affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to restart unexpectedly, resulting in a DoS condition.

Frequently asked questions

What is CVE-2023-20212?: A vulnerability in the AutoIt 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 a logic error in the memory management of an affected device. An attacker could exploit this vulnerability by submitting a crafted AutoIt file to be scanned by ClamAV on the affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to restart unexpectedly, resulting in a DoS condition.
How severe is CVE-2023-20212?: CVE-2023-20212 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-20212 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20212?: CVE-2023-20212 primarily affects Cisco Secure Endpoint. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20212?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-20212 published?: CVE-2023-20212 was published on 2023-08-18 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-FTkhqMWZ

Affected products (2)

cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*
cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Secure Endpoint

CVE-2023-20032 — Critical (CVSS 9.8): On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the…
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Other CWE-825 vulnerabilities

CVE-2025-49794 — Critical (CVSS 9.1): A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain…
CVE-2026-17523 — High (CVSS 7.8): A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this…
CVE-2026-46176 — High (CVSS 7.8): In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in…
CVE-2026-34001 — High (CVSS 7.8): A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic,…
CVE-2026-8854 — High (CVSS 7.5): IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache.
CVE-2025-49795 — High (CVSS 7.5): A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows…

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