Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2020-8625

62
FAUCET Score

CVE-2020-8625 is a vulnerability in BIND servers configured to use GSS-TSIG features, affecting versions 9.5.0 through 9.16.11, and specific BIND Supported Preview Edition and development branch versions. While the default configuration is not vulnerable, explicit configuration of tkey-gssapi-keytab or tkey-gssapi-credential can expose the flaw. This vulnerability carries a high CVSS score of 8.1, indicating a network attack vector with high impact on confidentiality, integrity, and availability, with remote code execution theoretically possible though unproven. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing, but it has garnered some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.5.0, <= 9.11.27CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.12.0, <= 9.16.11CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
9.11.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*
9.11.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*
9.11.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
64.16%
Probability of exploitation in next 30 days
EPSS Percentile
99.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.6416 is in the 99th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (14)

microsoftpatch availablevia msrc
Product: 19133-16820Fixed in: 9.16.3-3
microsoftpatch availablevia msrc
Product: cm1 bind 9.16.3-3 on CBL Mariner 1.0Fixed in: 9.16.3-3
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bind-32:9.11.4-26.P2.el7_9.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.2 Advanced Update SupportFixed in: bind-32:9.9.4-29.el7_2.10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Advanced Update SupportFixed in: bind-32:9.9.4-50.el7_3.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: bind-32:9.9.4-51.el7_4.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: bind-32:9.9.4-51.el7_4.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: bind-32:9.9.4-51.el7_4.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: bind-32:9.9.4-74.el7_6.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.7 Extended Update SupportFixed in: bind-32:9.11.4-9.P2.el7_7.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bind-32:9.11.20-5.el8_3.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: bind-32:9.11.4-26.P2.el8_1.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: bind-32:9.11.13-6.el8_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 Extended Lifecycle SupportFixed in: bind-32:9.8.2-0.68.rc1.el6_10.10
View patch

Vendor Advisories (2)

redhatCVE-2020-8625Important

bind: Buffer overflow in the SPNEGO implementation affecting GSSAPI security policy negotiation

Feb 17, 2021
microsoft2021-Feb/CVE-2020-8625Important

A vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack

Feb 9, 2021

References

cert-portal.siemens.com / productcert/pdf/ssa-389290.pdf
PatchThird Party Advisory
kb.isc.org / v1/docs/cve-2020-8625
MitigationVendor Advisory
lists.debian.org / debian-lts-announce/2021/02/msg00029.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/EBTPWRQWRQEJNWY4NHO4WLS4KLJ3ERHZ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KYXAF7G45RXDVNUTWWCI2CVTHRZ67LST
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/QWCMBOSZOJIIET7BWTRYS3HLX5TSDKHX
security.netapp.com / advisory/ntap-20210319-0001
Third Party Advisory
debian.org / security/2021/dsa-4857
Third Party Advisory
zerodayinitiative.com / advisories/ZDI-21-195
Third Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2021/02/19/1
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2021/02/20/2
Mailing ListPatchThird Party Advisory