CVE-2023-30362
CVE-2023-30362 is a high-severity vulnerability in Libcoap 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% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Libcoap
- Published:
- Last modified:
Description
Buffer Overflow vulnerability in coap_send function in libcoap library 4.3.1-103-g52cfd56 fixed in 4.3.1-120-ge242200 allows attackers to obtain sensitive information via malformed pdu.
Frequently asked questions
- What is CVE-2023-30362?
- Buffer Overflow vulnerability in coap_send function in libcoap library 4.3.1-103-g52cfd56 fixed in 4.3.1-120-ge242200 allows attackers to obtain sensitive information via malformed pdu.
- How severe is CVE-2023-30362?
- CVE-2023-30362 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 high, integrity none, and availability none.
- Is CVE-2023-30362 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-30362?
- CVE-2023-30362 affects Libcoap. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-30362?
- 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-2023-30362 published?
- CVE-2023-30362 was published on 2023-06-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libcoap:libcoap:*:*:*:*:*:*:*:*
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