ISC BIND up to 9.21.19 named assertion

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in ISC BIND up to 9.18.45/9.18.46-S0/9.20.20/9.20.20-S1/9.21.19. This affects an unknown part of the component named. The manipulation leads to assertion. This vulnerability is referenced as CVE-2026-3119. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ISC BIND up to 9.18.45/9.18.46-S0/9.20.20/9.20.20-S1/9.21.19. This issue affects some unknown processing of the component named. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. Impacted is availability. The summary by CVE is:

Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.

It is possible to read the advisory at kb.isc.org. The identification of this vulnerability is CVE-2026-3119 since 02/24/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 303729 (Linux Distros Unpatched Vulnerability : CVE-2026-3119), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.20.21 or 9.21.20 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (303729) and CERT Bund (WID-SEC-2026-0863). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Internet Systems Consortium BIND

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (isc): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303729
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-3119

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BIND 9.20.21/9.21.20

Timelineinfo

02/24/2026 CVE reserved
03/25/2026 +29 days Advisory disclosed
03/25/2026 +0 days VulDB entry created
06/23/2026 +90 days VulDB entry last update

Sourcesinfo

Vendor: isc.org

Advisory: kb.isc.org
Status: Confirmed

CVE: CVE-2026-3119 (🔒)
GCVE (CVE): GCVE-0-2026-3119
GCVE (VulDB): GCVE-100-353135
CERT Bund: WID-SEC-2026-0863 - Internet Systems Consortium BIND: Mehrere Schwachstellen

Entryinfo

Created: 03/25/2026 15:21
Updated: 06/23/2026 19:18
Changes: 03/25/2026 15:21 (64), 03/26/2026 07:33 (2), 03/31/2026 00:59 (1), 06/23/2026 19:18 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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