CVE-2026-25833
mbedtls: Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
CVE-2026-25833 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-25833, released April 1, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0032
25th percentile
Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mbedtls · Debian 14 | 3.6.6-0.1 | DEBIAN-CVE-2026-25833 | Apr 1, 2026 |
| mbedtls · opensuse-leap 16.0 | 3.6.6-bp160.1.1 | OPENSUSE-SU-2026:21144-1 | Jun 22, 2026 |
| ovmf · sles 16.0 | 202502-160000.5.1 | SUSE-SU-2026:22016-1 | Jun 2, 2026 |
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