What is CVE-2020-7045?

CVE-2020-7045 is a medium-severity vulnerability in Wireshark, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2020-01-16.

How severe is CVE-2020-7045?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Wireshark

CVE-2020-7045

In Wireshark 3.0.x before 3.0.8, the BT ATT dissector could crash. This was addressed in epan/dissectors/packet-btatt.c by validating opcodes.

Published 2020-01-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.015 (72.5th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Wireshark
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

bugs.wireshark.org/bugzilla/show_bug.cgi (Exploit, Patch, Issue Tracking, Vendor Advisory)
code.wireshark.org/review/gitweb
www.wireshark.org/security/wnpa-sec-2020-02.html (Vendor Advisory)
lists.debian.org/debian-lts-announce/2021/02/msg00008.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-7045?: CVE-2020-7045 is a medium-severity vulnerability in Wireshark, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2020-01-16.
How severe is CVE-2020-7045?: Medium severity. CVSS v3 base score is 6.5 out of 10.