CVE-2026-101955

highpriority · track · 32EPSS 0.005 · 45 %ileFRNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (45th) EPSS

CVSS 8.1 · high

Is it mine?

2 products

Check your exposure

Who says so?

2 sources

ncsc_nl · certfr

EPSS · scored 2026-10-27

A Stack-based Buffer Overflow vulnerability in the UTM Anti-Spam SBL of Juniper Networks Junos OS on SRX series allows an unauthenticated remote attacker to cause arbitrary code execution or a denial of service via a injected malformed DNS packet when Anti-Spam SBL inspection is enabled.

cvss

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

9.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.2–9.2

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · sirt@juniper.net USexploitability 2.2 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

v4.09.2criticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · sirt@juniper.net US

v4.07.2highCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · 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-121USCWE-121US

affected products (2)

Products and version ranges known to be affected.

Juniper Junos OS≤ vers:unknown/*ncsc_nlNL
Juniper Junos OS Evolved≤ vers:unknown/*ncsc_nlNL

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0430Kwetsbaarheden verholpen in Juniper Networks Junos OSNL2026-10-16csaf · ncsc_nlNL
Juniper heeft meerdere kwetsbaarheden verholpen in Junos OS.
CERTFR-2026-AVI-1322Multiples vulnérabilités dans les produits Juniper NetworksFrançais2026-10-15vendor · certfrFR

sources

Which sources assert this record, and when.

ncsc_nl certfr NVD CVE.org MITRE

published 2026-10-14modified 2026-10-16

references (1) nvd

External citations — patches, advisories, analysis.

https://supportportal.juniper.net/JSA112186

scry

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