FEDORA-2026-0CE923A09D: Security update for 7 packages

FEDORA-2026-0CE923A09D, released April 17, 2026, fixes 3 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

2 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0075

55th percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 2
                                High 0
                                Routine 1

Fixed package versions

Product	Release	Fixed in
libcoap	Fedora 43	4.3.5b-1.fc43
libcoap-debuginfo	Fedora 43	4.3.5b-1.fc43
libcoap-debugsource	Fedora 43	4.3.5b-1.fc43
libcoap-devel	Fedora 43	4.3.5b-1.fc43
libcoap-doc	Fedora 43	4.3.5b-1.fc43
libcoap-utils	Fedora 43	4.3.5b-1.fc43
libcoap-utils-debuginfo	Fedora 43	4.3.5b-1.fc43

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2025-34468	libcoap3: libcoap versions up to and including 4.3.5, prior to commit 30db3ea, contain a stack-based buffer overflow in address...	9.8	0.0075	None reported
Urgent	CVE-2026-29013	libcoap3: libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where get_byte_inc()...	9.8	0.0030	None reported
Routine	CVE-2025-59391	libcoap3: A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-pat...	6.5	0.0026	None reported

Also fixes CVE-2025-34468

DEBIAN-CVE-2025-34468
libcoap3 on Debian 13.5 (trixie), Debian 14

Vendor advisory

https://bodhi.fedoraproject.org/updates/FEDORA-2026-0ce923a09d

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