Medium [CVE-2026-95395] Denial of Service via memory leak in IEEE C37.118 Synchrophasor dissector
This medium-severity Red Hat Linux advisory covers CVE-2026-95395; related products: Red Hat Enterprise Linux 10, Red Hat package: wireshark.
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Summary
Denial of Service via memory leak in IEEE C37.118 Synchrophasor dissector. Red Hat rates this moderate (CVSS 5.5).
Weakness: CWE-772.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Mitigation checklist
- Operational mitigation can be achieved by avoiding the inspection of untrusted packet captures or capturing traffic on untrusted networks. Additionally, the affected protocol parser can be disabled in the Wireshark user interface: 1. Open Wireshark and navigate to Analyze -> Enabled Protocols... 2. Search for "IEEE C37.118" or "Synchrophasor". 3. Uncheck the entry to disable the dissector, then click Save or OK. Caveats: Disabling this protocol parser prevents Wireshark from decoding IEEE C37.118 Synchrophasor traffic; corresponding packets will be shown only as raw transport layer data (such as TCP or UDP). Restarting Wireshark or reloading the active capture file may be required for the configuration change to take effect.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
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