CVE-2025-48965 · cross-distro fix matrix

CVE-2025-48965: Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting data with val.p of NULL but val.len greater than zero.

Affects 5 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-48965 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mbedtls→ fixed in2.16.9-0.1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mbedtls
```

Debian trixie

Source: Debian Security Tracker

mbedtls→ fixed in3.6.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mbedtls
```

Alpine v3.20

Source: Alpine secdb

mbedtls→ fixed in3.6.4-r0
```
apk update && apk add --upgrade mbedtls
```

Alpine v3.21

Source: Alpine secdb

mbedtls→ fixed in3.6.4-r0
```
apk update && apk add --upgrade mbedtls
```

Alpine edge

Source: Alpine secdb

mbedtls→ fixed in3.6.4-r0
```
apk update && apk add --upgrade mbedtls
```

mbedtls3→ fixed in3.6.4-r0

apk update && apk add --upgrade mbedtls3

Are YOU affected by CVE-2025-48965?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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