VulnerabilityAnalyzed
CVE-2025-65501
Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.
MEDIUM 4.3EPSS 0.27%
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSL_get_app_data() returns NULL.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- EPSS
- 0.27% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- libcoap/libcoap
- Source
- cve@mitre.org
References
- https://github.com/obgm/libcoap/issues/1748Issue Tracking
- https://github.com/obgm/libcoap/pull/1750Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.