CVE-2015-4620 · cross-distro fix matrix

CVE-2015-4620: name.c in named in ISC BIND 9.7.x through 9.9.x before 9.9.7-P1 and 9.10.x before 9.10.2-P2, when configured as a recursive resolver with DNSSEC validation, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) by constructing crafted zone data and then mak

Affects 3 Linux releases across 3 (distro × package) combinations.

Elevated exploitation risk

FIRST EPSS puts CVE-2015-4620's probability of exploitation in the next 30 days at 38% (98th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:38% · 30-day exploit probability98th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2015-4620 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

bind9→ fixed in1:9.9.5.dfsg-10urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Debian bookworm

Source: Debian Security Tracker

bind9→ fixed in1:9.9.5.dfsg-10urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Debian trixie

Source: Debian Security Tracker

bind9→ fixed in1:9.9.5.dfsg-10urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Are YOU affected by CVE-2015-4620?

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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