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Fencer Intel
high 7.5

CVE-2017-9766 json

In Wireshark 2.2.7, PROFINET IO data with a high recursion depth allows remote attackers to cause a denial of service (stack exhaustion) in…

published 2017-06-21 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18696

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

In Wireshark 2.2.7, PROFINET IO data with a high recursion depth allows remote attackers to cause a denial of service (stack exhaustion) in the dissect_IODWriteReq function in plugins/profinet/packet-dcerpc-pn-io.c.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 2.4.0-1

debian advisories DEBIAN-CVE-2017-9766

  • wireshark Ubuntu 14.04 LTS 2.6.3-1~ubuntu14.04.1
  • wireshark Ubuntu 16.04 LTS 2.6.3-1~ubuntu16.04.1
  • wireshark Ubuntu 18.04 LTS 2.6.3-1~ubuntu18.04.1

ubuntu advisories UBUNTU-CVE-2017-9766

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wireshark SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 2.2.11-40.14.5
  • libsmi SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.4.5-2.7.2.1
  • portaudio SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 19-234.18.1
  • wireshark SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2 +6 more 2.2.9-48.9.2

suse advisories SUSE-SU-2018:0054-1SUSE-SU-2017:2555-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-9766 updated cvss 3.3

wireshark: PROFINET IO data with a high recursion depth can cause stack exhaustion

  • Red Hat Enterprise Linux 5 wireshark Red Hat Enterprise Linux 6 wireshark, wireshark-gnome Red Hat Enterprise Linux 7 wireshark, wireshark-gnome
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.42% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.