CVE-2026-18313

EUVD-2026-72020
rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use.  A malicious client can cause the server to leak memory substantially faster.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 12.41%
Debian logo
Debian Releases
Debian Product
Codename
libpcap
bookworm
unimportant
forky
1.11.0-1
fixed
sid
1.11.0-1
fixed
trixie
unimportant
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libpcap
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
trusty
needs-triage
xenial
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libpcap-devel
suse enterprise desktop 15 SP7
1.10.5-150700.3.13.1
fixed
suse enterprise sap 15 SP4
1.10.1-150400.3.12.1
fixed
suse enterprise sap 15 SP5
1.10.1-150400.3.12.1
fixed
suse enterprise sap 15 SP6
1.10.4-150600.3.12.1
fixed
suse enterprise sap 15 SP7
1.10.5-150700.3.13.1
fixed
suse enterprise server 15 SP4
1.10.1-150400.3.12.1
fixed
suse enterprise server 15 SP5
1.10.1-150400.3.12.1
fixed
suse enterprise server 15 SP6
1.10.4-150600.3.12.1
fixed
suse enterprise server 15 SP7
1.10.5-150700.3.13.1
fixed
libpcap1
suse enterprise desktop 15 SP7
1.10.5-150700.3.13.1
fixed
suse enterprise sap 15 SP4
1.10.1-150400.3.12.1
fixed
suse enterprise sap 15 SP5
1.10.1-150400.3.12.1
fixed
suse enterprise sap 15 SP6
1.10.4-150600.3.12.1
fixed
suse enterprise sap 15 SP7
1.10.5-150700.3.13.1
fixed
suse enterprise server 15 SP4
1.10.1-150400.3.12.1
fixed
suse enterprise server 15 SP5
1.10.1-150400.3.12.1
fixed
suse enterprise server 15 SP6
1.10.4-150600.3.12.1
fixed
suse enterprise server 15 SP7
1.10.5-150700.3.13.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
libpcap
Azure Linux 3.0
0:1.10.7-1.azl3
fixed
Common Weakness Enumeration
References
https://github.com/the-tcpdump-group/libpcap/commit/f9775af1a0ec76db60c7213241e6b48f1be10ac7