Red Hat Security Advisory: wireshark security update
The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network. Security Fix(es): * Wireshark: NULL Pointer Dereference in Wireshark (CVE-2025-9817) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The vulnerability CVE-2025-9817 in Wireshark involves a NULL pointer dereference, which can cause the application to crash or behave unexpectedly when processing certain network traffic. This issue affects Wireshark packages included in Red Hat Enterprise Linux 10 and its derivatives. Red Hat Product Security has released an update fixing this vulnerability, as detailed in advisory RHSA-2026:1714. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. No CVSS score is provided in the advisory, but the severity is rated moderate. No known exploits in the wild have been reported. The update is available via Red Hat's standard update channels.
Potential Impact
The NULL pointer dereference vulnerability can lead to application crashes or denial of service conditions when Wireshark processes crafted network packets. This may disrupt network traffic analysis or monitoring activities. There is no indication of remote code execution or privilege escalation from the provided information. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated Wireshark packages that fix this vulnerability. Users of Red Hat Enterprise Linux 10 and related CodeReady Linux Builder products should apply the security update as described in Red Hat advisory RHSA-2026:1714. Details on applying the update are available at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerability.
Red Hat Security Advisory: wireshark security update
Description
The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network. Security Fix(es): * Wireshark: NULL Pointer Dereference in Wireshark (CVE-2025-9817) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-9817 in Wireshark involves a NULL pointer dereference, which can cause the application to crash or behave unexpectedly when processing certain network traffic. This issue affects Wireshark packages included in Red Hat Enterprise Linux 10 and its derivatives. Red Hat Product Security has released an update fixing this vulnerability, as detailed in advisory RHSA-2026:1714. The advisory covers multiple architectures including x86_64, s390x, ppc64le, and aarch64. No CVSS score is provided in the advisory, but the severity is rated moderate. No known exploits in the wild have been reported. The update is available via Red Hat's standard update channels.
Potential Impact
The NULL pointer dereference vulnerability can lead to application crashes or denial of service conditions when Wireshark processes crafted network packets. This may disrupt network traffic analysis or monitoring activities. There is no indication of remote code execution or privilege escalation from the provided information. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated Wireshark packages that fix this vulnerability. Users of Red Hat Enterprise Linux 10 and related CodeReady Linux Builder products should apply the security update as described in Red Hat advisory RHSA-2026:1714. Details on applying the update are available at https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:2763
- Cve Count
- 1
Threat ID: 6a3cc2974853345fc16d1828
Added to database: 06/25/2026, 05:54:31 UTC
Last enriched: 07/12/2026, 11:00:48 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 59
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