CVE-2011-1958

CVE-2011-1958 is a medium-severity vulnerability in Wireshark with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Diameter dictionary file.

Frequently asked questions

What is CVE-2011-1958?
Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Diameter dictionary file.
How severe is CVE-2011-1958?
CVE-2011-1958 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-1958 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1958?
CVE-2011-1958 primarily affects Wireshark. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1958?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1958 published?
CVE-2011-1958 was published on 2011-06-06 and last updated on 2026-06-16.

References

Affected products (25)

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