Trending
CVE-2026-3119

CVE detail

CVE-2026-3119

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.

CVSS 6.5 · MediumBuzz score 31.1

Buzz score

Why this CVE is surfacing

Buzz score total 31.1

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 15.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

16.1

4 evidence mentions in the snapshot

Diversity score

15.0

3 sources across 3 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

4 source links · newest first

BIND Updates Patch High-Severity VulnerabilitiesSecurityWeek
Specially crafted domains could be used to cause out-of-memory conditions, leading to memory leaks in the BIND resolvers.
newswww.securityweek.comMar 26, 2026, 1:31 PM
https://kb.isc.org/docs/cve-2026-3119kb.isc.org
No excerpt available.
Vendor Advisorykb.isc.orgMar 25, 2026, 2:16 PM
https://downloads.isc.org/isc/bind9/9.21.20downloads.isc.org
No excerpt available.
Patchdownloads.isc.orgMar 25, 2026, 2:16 PM
https://downloads.isc.org/isc/bind9/9.20.21downloads.isc.org
No excerpt available.
Patchdownloads.isc.orgMar 25, 2026, 2:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-5946
Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that…
CVSS 7.5 · High
14 mentions
CVE-2023-5679
A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled. This iss…
CVSS 7.5 · High
CVE-2023-5517
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is configured, and - the resolver receives…
CVSS 7.5 · High
CVE-2023-4236
A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are…
CVSS 7.5 · High
1 mention
CVE-2022-3924
This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.…
CVSS 7.5 · High
4 mentions
CVE-2022-3488
Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an asse…
CVSS 7.5 · High
2 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-3119.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:isc:bindSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-3119Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Mar 25, 2026

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): None. There is no direct impact to this security property.
Integrity Impact (I): None. There is no direct impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses