7.8

CVE-2025-9817: wireshark foundation wireshark NULL Pointer Dereference

CVSS: 7.8v3.1HighAnalyzed
AliasesSUSE-SU-2025:03294-1RHSA-2026:1714RHSA-2026:2763
Published 03-09-2025Last modified 27-03-2026
Open JSON

Vulnerability summary

CVE-2025-9817 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in wireshark foundation wireshark. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
DSA-6124-1MGASA-2026-0184OPENSUSE-SU-2026:20151-1SUSE-SU-2026:1169-1SUSE-SU-2026:20222-1

Timeline

  1. 03-09-2025
    PublishedVulnerability first disclosed.
  2. 27-03-2026
    Last modifiedVulnerability information updated.

Description

SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat6 products
  • wireshark< 1:4.4.2-4.el10_1.2 | < 1:4.4.2-3.el10_0.2
  • wireshark-cli< 1:4.4.2-4.el10_1.2 | < 1:4.4.2-3.el10_0.2
  • wireshark-cli-debuginfo< 1:4.4.2-4.el10_1.2 | < 1:4.4.2-3.el10_0.2
  • wireshark-debuginfo< 1:4.4.2-4.el10_1.2 | < 1:4.4.2-3.el10_0.2
  • wireshark-debugsource< 1:4.4.2-4.el10_1.2 | < 1:4.4.2-3.el10_0.2
Suse4 products
  • wireshark&distro=SUSE Linux Enterprise Module for Basesystem 15 SP6< 4.2.13-150600.18.26.1
  • wireshark&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7< 4.2.13-150600.18.26.1
  • wireshark&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP6< 4.2.13-150600.18.26.1
  • wireshark&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP7< 4.2.13-150600.18.26.1
Opensuse2 products
  • wireshark&distro=openSUSE Leap 15.6< 4.2.13-150600.18.26.1
  • wireshark&distro=openSUSE Tumbleweed< 4.4.9-2.1
Debian1 product
  • wireshark< 4.0.17-0+deb12u2 | < 4.4.13-0+deb13u1 | < 4.4.9-1
Ubuntu1 product
  • wiresharkAll versions (No fix recorded)
Wireshark1 product
Wireshark foundation1 product

7 vendors · 16 products

References

16 links
Show all 16 references