How severe is CVE-2019-15161?

CVE-2019-15161 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2019-15161 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-2019-15161?

CVE-2019-15161 affects Tcpdump Libpcap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15161?

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

When was CVE-2019-15161 published?

CVE-2019-15161 was published on 2019-10-03 and last updated on 2026-06-17.

CVE-2019-15161

CVE-2019-15161 is a medium-severity vulnerability in Tcpdump Libpcap with a CVSS 3.x base score of 5.3. 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-131.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-131
Affected product: Tcpdump Libpcap
Published: 2019-10-03
Last modified: 2026-06-17

Description

rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.

Frequently asked questions

What is CVE-2019-15161?: rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.
How severe is CVE-2019-15161?: CVE-2019-15161 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2019-15161 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-2019-15161?: CVE-2019-15161 affects Tcpdump Libpcap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15161?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15161 published?: CVE-2019-15161 was published on 2019-10-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*

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