CVE-2026-11348Network attack vector

Data-source spoofing via improper signature verification

Published Jul 7, 2026 · Updated Jul 7, 2026

Improper signature verification in HAVELSAN Liman MYS before release.Master.1107 allows remote attackers to fake the source of data. Published materials do not identify the affected component or the incorrect signature-validation operation performed on untrusted input. No authentication or user interaction is required, but exploitation depends on an undisclosed high-complexity condition.

CVSS severity8.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in HAVELSAN Liman MYS before release.Master.1107 allows remote attackers to fake the source of data. Published materials do not identify the affected component or the incorrect signature-validation operation performed on untrusted input. No authentication or user interaction is required, but exploitation depends on an undisclosed high-complexity condition.

The record

CVE
CVE-2026-11348
Published
Jul 7, 2026
Updated
Jul 7, 2026
Vendor
HAVELSAN
Product
Liman MYS
Classifications
CWE-347, CAPEC-194
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <release.master.1107

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HAVELSAN · Liman MYSversion=0 <release.master.1107

Published CVSS scores

8.1Computer Emergency Response Team of the Republic of TurkeyCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CAPEC-194Fake the Source of Data

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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