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Vulnerabilities

Vulnerability · CVE-2020-8622

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSI

Published Aug 21, 2020 · catalog updated Oct 26, 2026 · In BIND 9.0.0 ->

Last checked Nov 3, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2020-8622. EPSS is 5.90%. Act only if a listed version of In BIND 9.0.0 -> is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In BIND 9.0.0 ->).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
5.90%
Remediation
Advisory link
Affected products
Alpine:v3.10 bind · Alpine:v3.11 bind · Alpine:v3.12 bind · Alpine:v3.13 bind · Alpine:v3.14 bind · Alpine:v3.15 bind

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Alpine:v3.10 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.11 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.12 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.13 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.14 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.15 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.16 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.17 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.18 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.19 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.20 bind9.0.0 → 9.16.6-r0
  • Alpine:v3.21 bind9.0.0 → 9.16.6-r0

How to fix CVE-2020-8622

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-8622. EPSS is 5.90%. Act only if a listed version of In BIND 9.0.0 -> is installed.

Which versions are affected?

Compare what you have installed with 9.0.0 → 9.16.6-r0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 5.90%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 21, 2020 · Trivy Vulnerability DB

    Detected

    In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker

  2. Oct 26, 2026 · Trivy Vulnerability DB

    Fix available

    bind fixed in 9.16.6-r0; bind fixed in 9.16.6-r0; bind fixed in 9.16.6-r0; bind fixed in 9.16.6-r0

  3. Oct 26, 2026 · Trivy Vulnerability DB

    Fix available

    bind fixed in 9.16.6-r0

  4. Oct 26, 2026 · Trivy Vulnerability DB

    Updated

    In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker

Sources

  • CVE.orgVulnerability recordCVE-2020-8622

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-8622

    30-day exploitation probability 5.90%

    first.org
  • Trivy Vulnerability DBPackage advisoryALPINE-CVE-2020-8622

    In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated

    osv.dev

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 3, 2026
  • CVE.orgOct 26, 2026
  • Trivy Vulnerability DBOct 26, 2026