CVE-2024-3386Network attack vector

Decryption bypass via incorrect domain comparison

Published Apr 10, 2024 · Updated May 13, 2026

Interpretation conflict in affected PAN-OS 9.0 through 11.0 releases allows remote attackers to bypass intended TLS traffic decryption. The Predefined Decryption Exclusions matcher compares destination-domain strings incorrectly, causing unlisted domains to satisfy the exclusion test. Exposure requires configured Predefined Decryption Exclusions; affected traffic passes without TLS inspection, weakening policy enforcement.

CVSS severity6.9
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Interpretation conflict in affected PAN-OS 9.0 through 11.0 releases allows remote attackers to bypass intended TLS traffic decryption. The Predefined Decryption Exclusions matcher compares destination-domain strings incorrectly, causing unlisted domains to satisfy the exclusion test. Exposure requires configured Predefined Decryption Exclusions; affected traffic passes without TLS inspection, weakening policy enforcement.

The record

CVE
CVE-2024-3386
Published
Apr 10, 2024
Updated
May 13, 2026
Vendor
Palo Alto Networks
Product
PAN-OS
Classifications
CWE-436
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2024CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0 <10.0.13 changes=[{"at":"10.0.13","status":"unaffected"}]
  2. Affected versionversion=10.1.0 <10.1.10 changes=[{"at":"10.1.10","status":"unaffected"}]
  3. Affected versionversion=10.1.0 <10.1.9-h3 changes=[{"at":"10.1.9-h3","status":"unaffected"}]
  4. Affected versionversion=10.2.0 <10.2.4-h2 changes=[{"at":"10.2.4-h2","status":"unaffected"}]
  5. Affected versionversion=10.2.0 <10.2.5 changes=[{"at":"10.2.5","status":"unaffected"}]
  6. Affected versionversion=11.0.0 <11.0.1-h2 changes=[{"at":"11.0.1-h2","status":"unaffected"}]
  7. Affected versionversion=11.0.0 <11.0.2 changes=[{"at":"11.0.2","status":"unaffected"}]
  8. Affected versionversion=9.0.0 <9.0.17-h2 changes=[{"at":"9.0.17-h2","status":"unaffected"}]
  9. Affected versionversion=9.1.0 <9.1.17 changes=[{"at":"9.1.17","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Palo Alto Networks · PAN-OSversion=10.0.0 <10.0.13 changes=[{"at":"10.0.13","status":"unaffected"}]; version=10.1.0 <10.1.10 changes=[{"at":"10.1.10","status":"unaffected"}]; version=10.1.0 <10.1.9-h3 changes=[{"at":"10.1.9-h3","status":"unaffected"}]; version=10.2.0 <10.2.4-h2 changes=[{"at":"10.2.4-h2","status":"unaffected"}]; version=10.2.0 <10.2.5 changes=[{"at":"10.2.5","status":"unaffected"}]; version=11.0.0 <11.0.1-h2 changes=[{"at":"11.0.1-h2","status":"unaffected"}]; version=11.0.0 <11.0.2 changes=[{"at":"11.0.2","status":"unaffected"}]; version=9.0.0 <9.0.17-h2 changes=[{"at":"9.0.17-h2","status":"unaffected"}]; version=9.1.0 <9.1.17 changes=[{"at":"9.1.17","status":"unaffected"}]

Published CVSS scores

5.3Palo Alto NetworksCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:L/U:Amber

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-436Interpretation Conflict

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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