CVE-2026-94300

highpriority · track · 42EPSS 0.010 · 61 %ileexploit · PoCDEFR

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.95% (61st) EPSS

CVSS 8.1 · high

Is it mine?

6 products

Check your exposure

Who says so?

2 sources

cert_bund · certfr

EPSS · scored 2026-10-27

Replaying GSS-TSIG signed UDP messages can result in memory corruption in "`named`". An attacker who can capture a previously signed UDP message can replay it while the negotiated TSIG key is still valid. By also sending crafted queries to a zone the attacker controls, the attacker may potentially achieve remote code execution. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · security-officer@isc.orgexploitability 2.2 · impact 5.9

v3.17.7highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USCWE-362USCWE-415USCWE-415US

exploits (1)

Public proof-of-concept and weaponised exploit code.

Ibonok/CVE-2026-94300CVE-2026-94300: This analysis and PoC were produced substantially with AI assistance ("AI patchwork"). Every code, diff and measurement claim should be verified against the cited sources before being relied upon.PoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Internet Systems Consortium BIND≤ Supported Preview Edition <9.20.30-S1cert_bundDE
Internet Systems Consortium BIND< 9.20.30cert_bundDE
Internet Systems Consortium BIND< 9.21.27cert_bundDE
Internet Systems Consortium BIND≥ 9.11.0cert_bundDE

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-4116Internet Systems Consortium BIND: Mehrere SchwachstellenDeutsch2026-10-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Internet Systems Consortium BIND ausnutzen, um einen Denial of Service Angriff durchzuführen oder möglicherweise beliebigen Code auszuführen.
CERTFR-2026-AVI-1365Multiples vulnérabilités dans ISC BINDFrançais2026-10-22vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund certfr NVD CVE.org MITRE

published 2026-10-21modified 2026-10-26

references (3) nvd

External citations — patches, advisories, analysis.

scry

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