CVE-2003-0143

CVE-2003-0143 is a critical-severity vulnerability in Qualcomm Qpopper with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The pop_msg function in qpopper 4.0.x before 4.0.5fc2 does not null terminate a message buffer after a call to Qvsnprintf, which could allow authenticated users to execute arbitrary code via a buffer overflow in a mdef command with a long macro name.

Frequently asked questions

What is CVE-2003-0143?
The pop_msg function in qpopper 4.0.x before 4.0.5fc2 does not null terminate a message buffer after a call to Qvsnprintf, which could allow authenticated users to execute arbitrary code via a buffer overflow in a mdef command with a long macro name.
How severe is CVE-2003-0143?
CVE-2003-0143 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-0143 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0143?
CVE-2003-0143 primarily affects Qualcomm Qpopper. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0143?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2003-0143 published?
CVE-2003-0143 was published on 2003-03-18 and last updated on 2026-06-16.

References

Affected products (4)

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