CVE-2023-47264
CVE-2023-47264 is a high-severity vulnerability in Withsecure Client Security 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-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Withsecure Client Security
- Published:
- Last modified:
Description
Certain WithSecure products have a buffer over-read whereby processing certain fuzz file types may cause a denial of service (DoS). This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, WithSecure Linux Security 64 12.0, WithSecure Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 15 and later.
Frequently asked questions
- What is CVE-2023-47264?
- Certain WithSecure products have a buffer over-read whereby processing certain fuzz file types may cause a denial of service (DoS). This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, WithSecure Linux Security 64 12.0, WithSecure Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 15 and later.
- How severe is CVE-2023-47264?
- CVE-2023-47264 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-2023-47264 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-47264?
- CVE-2023-47264 primarily affects Withsecure Client Security. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-47264?
- 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-2023-47264 published?
- CVE-2023-47264 was published on 2023-11-16 and last updated on 2026-06-17.
References
Affected products (8)
- cpe:2.3:a:withsecure:client_security:15:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:elements_endpoint_protection:*:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:email_and_server_security:15:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:server_security:15:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:linux_protection:12.0:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:linux_security_64:12.0:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:atlant:*:*:*:*:*:*:*:*
- cpe:2.3:a:withsecure:atlant:1.0.35-1:*:*:*:*:*:*:*
More vulnerabilities in Withsecure Client Security
- CVE-2024-4454 — High (CVSS 7.8): WithSecure Elements Endpoint Protection Link Following Local Privilege Escalation Vulnerability. This vulnerability…
- CVE-2023-47172 — High (CVSS 7.8): Certain WithSecure products allow Local Privilege Escalation. This affects WithSecure Client Security 15, WithSecure…
- CVE-2023-47263 — High (CVSS 7.5): Certain WithSecure products allow a Denial of Service (DoS) in the antivirus engine when scanning a fuzzed PE32 file.…
- CVE-2023-42525 — High (CVSS 7.5): Certain WithSecure products allow an infinite loop in a scanning engine via unspecified file types. This affects…
- CVE-2023-42524 — High (CVSS 7.5): Certain WithSecure products allow an infinite loop in a scanning engine via unspecified file types. This affects…
- CVE-2023-42523 — High (CVSS 7.5): Certain WithSecure products allow a remote crash of a scanning engine via unpacking of a PE file. This affects…
All CVEs affecting Withsecure Client Security →
Other CWE-125 (Out-of-bounds Read) vulnerabilities
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- CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
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- CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
- CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…