libnetty-java 4.1.48-6: libnetty-java 4.1.48-6 for Ubuntu 25.04 (plucky)

libnetty-java 4.1.48-6, released January 16, 2026, fixes 5 CVEs in libnetty-java. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

HighUnsupported product

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0657

93rd percentile

Priority of the 5 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 4

Fixed package versions

Product	Release	Fixed in
libnetty-java	Ubuntu 25.04 (plucky)	4.1.48-6

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2022-41881	libnetty-java: Netty project is an event-driven asynchronous network applicationframework	7.5	0.0158	None reported
Routine	CVE-2021-37137	libnetty-java: The Snappy frame decoder function doesn't restrict the chunk length whichmay lead to excessive memory usage	n/a	0.0657	None reported
Routine	CVE-2021-37136	libnetty-java: The Bzip2 decompression decoder function doesn't allow setting sizerestrictions on the decompressed output data (whic...	n/a	0.0591	None reported
Routine	CVE-2021-43797	libnetty-java: Netty is an asynchronous event-driven network application framework forrapid development of maintainable high perform...	6.5	0.0288	None reported
Routine	CVE-2022-41915	libnetty-java: Netty project is an event-driven asynchronous network applicationframework	6.5	0.0095	None reported

Also fixes CVE-2022-41881

libnetty-java 1:4.1.45-1ubuntu0.1~esm1
libnetty-java on Ubuntu 20.04 LTS (focal)
libnetty-java 1:4.1.48-4+deb11u1build0.22.04.1
libnetty-java on Ubuntu 22.04.1 LTS (jammy)
libnetty-java 1:4.1.7-4ubuntu0.1+esm2
libnetty-java on Ubuntu 18.04.6 LTS (bionic)
libnetty-java 4.1.48-6
libnetty-java on Ubuntu 24.10 (oracular)
DEBIAN-CVE-2022-41881
netty on Debian 12.15 (bookworm), Debian 13.5 (trixie), Debian 14

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