What is CVE-2017-7243?

CVE-2017-7243 is a high-severity vulnerability in Eclipse Tinydtls, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2017-03-24.

How severe is CVE-2017-7243?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2017-7243 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Eclipse Tinydtls

CVE-2017-7243

Eclipse tinydtls 0.8.2 for Eclipse IoT allows remote attackers to cause a denial of service (DTLS peer crash) by sending a "Change cipher spec" packet without pre-handshake.

Published 2017-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Eclipse Tinydtls — versions 0.8.2

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

References

github.com/k1rh4/CVE/blob/master/tinydtls (Third Party Advisory)
www.securityfocus.com/bid/97193 (vdb-entry)
gist.github.com/k1rh4/25dcb124aef2a8a2a5f4677d64d1998b (Third Party Advisory)

Frequently asked questions

What is CVE-2017-7243?: CVE-2017-7243 is a high-severity vulnerability in Eclipse Tinydtls, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2017-03-24.
How severe is CVE-2017-7243?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-7243 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.