CVE-2016-4420 — wireshark: NFS dissector crash (wnpa-sec-2016-17)

MEDIUM

wireshark: NFS dissector crash (wnpa-sec-2016-17)

Published May 1, 2016

5.9

MEDIUM

CVSS 3.0

EPSS 1.39%

The NFS dissector in Wireshark 2.x before 2.0.2 allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Product	Package	State	Advisory
Red Hat Enterprise Linux 5	wireshark	Not affected	n/a
Red Hat Enterprise Linux 6	wireshark	Not affected	n/a
Red Hat Enterprise Linux 7	wireshark	Not affected	n/a

No remediation recorded yet.

1.39% 0.01387

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01387

2022–2026

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.39% (0.01387)	71.24th	v5 (v2026.06.15)
Jun 15, 2026	1.39% (0.01387)	68.58th	v5 (v2026.06.15)
Mar 17, 2025	0.14% (0.00143)	31.87th	v4 (v2025.03.14)
Dec 12, 2024	0.29% (0.00291)	69.91th	v3 (v2023.03.01)
Apr 25, 2024	0.19% (0.00186)	55.27th	v3 (v2023.03.01)
Mar 15, 2024	0.17% (0.00171)	53.10th	v3 (v2023.03.01)
Feb 8, 2024	0.15% (0.00155)	50.57th	v3 (v2023.03.01)
Mar 7, 2023	0.25% (0.00246)	60.71th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2016-4420		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1312800		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2016-4420
https://www.cve.org/CVERecord?id=CVE-2016-4420
https://www.wireshark.org/security/wnpa-sec-2016-17.html		x_refsource_CONFIRMVendor Advisory