CVE-2023-40296
CVE-2023-40296 is a high-severity vulnerability in Eminfedar Async-sockets-cpp 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-787.
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-787
- Affected product: Eminfedar Async-sockets-cpp
- Published:
- Last modified:
Description
async-sockets-cpp through 0.3.1 has a stack-based buffer overflow in ReceiveFrom and Receive in udpsocket.hpp when processing malformed UDP packets.
Frequently asked questions
- What is CVE-2023-40296?
- async-sockets-cpp through 0.3.1 has a stack-based buffer overflow in ReceiveFrom and Receive in udpsocket.hpp when processing malformed UDP packets.
- How severe is CVE-2023-40296?
- CVE-2023-40296 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-2023-40296 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-2023-40296?
- CVE-2023-40296 affects Eminfedar Async-sockets-cpp. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-40296?
- 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-2023-40296 published?
- CVE-2023-40296 was published on 2023-08-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:eminfedar:async-sockets-cpp:*:*:*:*:*:*:*:*
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