How severe is CVE-2012-3845?

CVE-2012-3845 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-3845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3845?

CVE-2012-3845 affects Lan Messenger Lan Messenger1.2.28. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-3845?

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

When was CVE-2012-3845 published?

CVE-2012-3845 was published on 2012-07-03 and last updated on 2026-06-16.

CVE-2012-3845

CVE-2012-3845 is a medium-severity vulnerability in Lan Messenger Lan Messenger1.2.28 with a CVSS 2.0 base score of 5.0. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Lan Messenger Lan Messenger1.2.28
Published: 2012-07-03
Last modified: 2026-06-16

Description

Buffer overflow in LAN Messenger 1.2.28 and earlier allows remote attackers to cause a denial of service (crash) via a long string in an initiation request.

Frequently asked questions

What is CVE-2012-3845?: Buffer overflow in LAN Messenger 1.2.28 and earlier allows remote attackers to cause a denial of service (crash) via a long string in an initiation request.
How severe is CVE-2012-3845?: CVE-2012-3845 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-3845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3845?: CVE-2012-3845 affects Lan Messenger Lan Messenger1.2.28. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-3845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3845 published?: CVE-2012-3845 was published on 2012-07-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:lan_messenger:lan_messenger1.2.28:*:*:*:*:*:*:*:*

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