CVE-2020-8625

HIGHNVD 8.18.7▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.7 because EPSS predicts 64% probability of exploitation within the next 30 days (top 0.9% of all CVEs). NVD baseline CVSS 8.1 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
8.7EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 64%
CISA-KEV: Not listedEPSS PROB: 64%CVSS: 8.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting valid values for the tkey-gssapi-keytab or tkey-gssapi-credentialconfiguration options. Although the default configuration is not vulnerable, GSS-TSIG is frequently used in networks where BIND is integrated with Samba, as well as in mixed-server environments that combine BIND servers with Active Directory domain controllers. The most likely outcome of a successful exploitation of the vulnerability is a crash of the named process. However, remote code execution, while unproven, is theoretically possible. Affects: BIND 9.5.0 -> 9.11.27, 9.12.0 -> 9.16.11, and versions BIND 9.11.3-S1 -> 9.11.27-S1 and 9.16.8-S1 -> 9.16.11-S1 of BIND Supported Preview Edition. Also release versions 9.17.0 -> 9.17.1 of the BIND 9.17 development branch

CVSS v3
8.1
EG Score
8.7(high)
EG Risk
69(Track)
EG Risk 69/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation64% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
64%
EPSS %ILE
99%
KEV
Not listed

Published

February 17, 2021

Last Modified

November 21, 2024

Advisory Details (10)

Auto-updated Sep 16, 2026
Patch available.
generic

[SECURITY] [DSA 4857-1] bind9 security update

https://www.debian.org/security/2021/dsa-4857
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20210319-0001/
generic

[SECURITY] Fedora 32 Update: bind-9.11.28-1.fc32 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QWCMBOSZOJIIET7BWTRYS3HLX5TSDKHX/
generic

[SECURITY] Fedora 33 Update: bind-9.11.28-1.fc33 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYXAF7G45RXDVNUTWWCI2CVTHRZ67LST/
generic

[SECURITY] Fedora 34 Update: bind-9.16.11-5.fc34 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBTPWRQWRQEJNWY4NHO4WLS4KLJ3ERHZ/
generic Patch Available

[SECURITY] [DLA 2568-1] bind9 security update

https://lists.debian.org/debian-lts-announce/2021/02/msg00029.html
generic

CVE-2020-8625: A vulnerability in BIND's GSSAPI security policy negoti

https://kb.isc.org/v1/docs/cve-2020-8625
generic
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
generic

oss-security - BIND Operational Notification: Zone journal (.jnl) file incompatibility,after upgrading to BIND 9.16.12 and 9.17

http://www.openwall.com/lists/oss-security/2021/02/20/2
generic

oss-security - BIND Operational Notification: Enabling the new BIND option "stale-answer-client-timeout" can result in unexpected server termination

http://www.openwall.com/lists/oss-security/2021/02/19/1

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntubind9-host (1:9.9.5.dfsg-3ubuntu0.19+esm4) @ trusty2026-05-26ubuntu
ubuntulwresd (1:9.10.3.dfsg.P4-8ubuntu1.18) @ xenial2026-05-26ubuntu
redhatbind-32:9.11.13-6.el8_2.22021-03-17redhat
redhatbind-32:9.11.4-9.P2.el7_7.42021-03-04redhat
redhatbind-32:9.9.4-74.el7_6.62021-03-03redhat
redhatbind-32:9.9.4-29.el7_2.102021-03-03redhat
redhatbind-32:9.9.4-50.el7_3.52021-03-03redhat
redhatbind-32:9.9.4-51.el7_4.52021-03-03redhat
redhatbind-32:9.11.4-26.P2.el8_1.42021-03-01redhat
redhatbind-32:9.8.2-0.68.rc1.el6_10.102021-03-01redhat
redhatbind-32:9.11.4-26.P2.el7_9.42021-03-01redhat
redhatbind-32:9.11.20-5.el8_3.12021-03-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(21 across 21 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.11(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.12(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.13(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.11-r2—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
bind91:9.11.5.P4+dfsg-5.1, 1:9.11.5.P4+dfsg-5.1+deb10u1, 1:9.11.5.P4+dfsg-5.1+deb10u21:9.11.5.P4+dfsg-5.1+deb10u3—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.16.12-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.16.12-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.16.12-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.16.12-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
bind91:9.10.3.dfsg.P4-12.3 ... 1:9.10.3.dfsg.P4-12.3+deb9u7 (8 versions)1:9.10.3.dfsg.P4-12.3+deb9u8—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(13)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-09-19 15:37 UTCEPSS rescore
  2. 2026-09-18 19:23 UTCEPSS rescore
  3. 2026-09-17 19:22 UTCEPSS rescore
  4. 2026-09-16 14:04 UTCEPSS rescore
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  6. 2026-09-13 16:43 UTCEPSS rescore
  7. 2026-09-12 14:57 UTCEPSS rescore
  8. 2026-09-08 21:56 UTCEPSS rescore
  9. 2026-09-06 22:01 UTCOSV refresh
  10. 2026-09-06 13:44 UTCEPSS rescore
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  20. 2026-08-20 07:55 UTCOSV refresh
  21. 2026-08-19 17:00 UTCEPSS rescore
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  24. 2026-08-15 01:27 UTCEPSS rescore
  25. 2026-08-13 21:57 UTCEPSS rescore
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  1. 2026-08-12 13:47 UTCEPSS rescore
  2. 2026-08-08 16:33 UTCEPSS rescore
  3. 2026-08-07 16:23 UTCEPSS rescore
  4. 2026-08-05 19:14 UTCEPSS rescore
  5. 2026-08-05 03:11 UTCOSV refresh
  6. 2026-07-30 16:25 UTCEPSS rescore
  7. 2026-07-30 01:27 UTCEPSS rescore
  8. 2026-07-28 15:33 UTCEPSS rescore
  9. 2026-07-26 14:52 UTCEPSS rescore
  10. 2026-07-25 14:15 UTCEPSS rescore
  11. 2026-07-24 14:15 UTCEPSS rescore
  12. 2026-07-23 14:15 UTCEPSS rescore
  13. 2026-07-23 01:55 UTCEG score recompute▲ 0.60
  14. 2026-07-22 22:41 UTCEG score recompute
  15. 2026-07-22 14:05 UTCEPSS rescore
  16. 2026-07-20 17:04 UTCEPSS rescore
  17. 2026-07-20 17:04 UTCEPSS rescore
  18. 2026-07-19 01:29 UTCOSV refresh
  19. 2026-07-18 10:02 UTCEPSS rescore
  20. 2026-07-15 16:55 UTCEPSS rescore
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  22. 2026-07-15 01:57 UTCEPSS rescore
  23. 2026-07-13 22:27 UTCEPSS rescore
  24. 2026-07-13 22:27 UTCEPSS rescore
  25. 2026-07-12 05:44 UTCEPSS rescore
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  27. 2026-07-11 08:25 UTCEPSS rescore
  28. 2026-07-11 08:25 UTCEPSS rescore
  29. 2026-07-09 19:07 UTCEPSS rescore
  30. 2026-07-04 06:29 UTCEPSS rescore
  31. 2026-07-04 06:29 UTCEPSS rescore
  32. 2026-07-01 15:03 UTCEPSS rescore
  33. 2026-07-01 08:18 UTCOSV refresh
  34. 2026-06-28 14:05 UTCEPSS rescore
  35. 2026-06-28 04:54 UTCEPSS rescore
  36. 2026-06-28 04:54 UTCEPSS rescore
  37. 2026-06-27 03:06 UTCEPSS rescore
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  39. 2026-06-25 13:48 UTCEPSS rescore
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  41. 2026-06-24 14:03 UTCEPSS rescore
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  43. 2026-06-23 21:31 UTCEPSS rescore
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  45. 2026-06-21 01:57 UTCEPSS rescore
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  47. 2026-06-18 17:51 UTCEPSS rescore
  48. 2026-06-18 17:50 UTCEPSS rescore
  49. 2026-06-17 17:50 UTCEPSS rescore
  50. 2026-06-16 17:50 UTCEPSS rescore
  51. 2026-06-15 17:46 UTCEPSS rescore
  52. 2026-06-14 23:15 UTCEPSS rescore
  53. 2026-06-13 22:58 UTCEPSS rescore
  54. 2026-06-13 22:58 UTCEPSS rescore
  55. 2026-06-13 13:43 UTCOSV refresh
  56. 2026-06-12 23:10 UTCEPSS rescore
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  58. 2026-06-11 13:58 UTCEPSS rescore
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  60. 2026-06-10 22:16 UTCEPSS rescore
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  63. 2026-06-06 13:46 UTCEPSS rescore
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  66. 2026-06-05 22:45 UTCEPSS rescore
  67. 2026-06-05 22:45 UTCEPSS rescore
  68. 2026-06-05 06:08 UTCEPSS rescore
  69. 2026-06-05 06:08 UTCEPSS rescore
  70. 2026-06-04 13:10 UTCEPSS rescore
  71. 2026-06-04 13:10 UTCEPSS rescore
  72. 2026-06-02 20:11 UTCEPSS rescore
  73. 2026-06-02 20:11 UTCEPSS rescore
  74. 2026-06-01 13:50 UTCEPSS rescore
  75. 2026-05-31 22:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-8625?
CVE-2020-8625 is a high vulnerability published on February 17, 2021. BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting valid values for the…
When was CVE-2020-8625 disclosed?
CVE-2020-8625 was first published in the National Vulnerability Database on February 17, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8625 actively exploited?
CVE-2020-8625 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64% probability of exploitation in the next 30 days, which ranks it in the top 0.8% of all scored CVEs.
What is the CVSS score of CVE-2020-8625?
CVE-2020-8625 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.7.
How do I remediate CVE-2020-8625?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8625, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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