DEBIAN-CVE-2025-64076: cbor2 security update

DEBIAN-CVE-2025-64076, released November 18, 2025, fixes 1 CVE in cbor2 (version 5.7.1-1). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0049

42nd percentile

Fixed package versions

Product	Release	Fixed in
cbor2	Debian 14	5.7.1-1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2025-64076	cbor2: Multiple vulnerabilities exist in cbor2 through version 5.7.0 in the decode_definite_long_string() function of the C...	7.5	0.0049	None reported

Also fixes CVE-2025-64076

SUSE-SU-2025:21168-1
python-cbor2 on sles 16.0
OPENSUSE-SU-2025:20133-1
python-cbor2 on opensuse-leap 16.0
FEDORA-2026-CD0BB7AC34
python-cbor2, python-cbor2-debugsource, python-cbor2-doc and 2 more on Fedora 43

Vendor advisory

https://security-tracker.debian.org/tracker/CVE-2025-64076

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