How severe is CVE-2012-5237?

CVE-2012-5237 has a CVSS 2.0 base score of 3.3, rated low severity.

Is CVE-2012-5237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5237?

CVE-2012-5237 primarily affects Wireshark. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-5237?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-5237 published?

CVE-2012-5237 was published on 2012-10-04 and last updated on 2026-06-16.

CVE-2012-5237

CVE-2012-5237 is a low-severity vulnerability in Wireshark with a CVSS 2.0 base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Low (CVSS 2.0 base score 3.3)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Wireshark
Published: 2012-10-04
Last modified: 2026-06-16

Description

The dissect_hsrp function in epan/dissectors/packet-hsrp.c in the HSRP dissector in Wireshark 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (infinite loop) via a malformed packet.

Frequently asked questions

What is CVE-2012-5237?: The dissect_hsrp function in epan/dissectors/packet-hsrp.c in the HSRP dissector in Wireshark 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (infinite loop) via a malformed packet.
How severe is CVE-2012-5237?: CVE-2012-5237 has a CVSS 2.0 base score of 3.3, rated low severity.
Is CVE-2012-5237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5237?: CVE-2012-5237 primarily affects Wireshark. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-5237?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5237 published?: CVE-2012-5237 was published on 2012-10-04 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:wireshark:wireshark:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:wireshark:wireshark:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:wireshark:wireshark:1.8.2:*:*:*:*:*:*:*

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