Security Resilience

CVE-2023-41265

Qlik Sense august_2022 … november_2022

CISA KEVActive ExploitationEUVD ExploitedRansomware-linked
Published
29 August 2023
Modified
05 August 2026
KEV Added
07 December 2023
Patch / advisory
CVSS Score v3.1 9.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS Score 0.88 99.8th percentile
Risk Priority 92 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-41265 is a critical-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Qlik Qlik Sense. Its CVSS base score is 9.6 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique LSASS Memory (T1003.001); ranked in the top 0.2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-41265 is an HTTP request tunneling vulnerability affecting Qlik Sense Enterprise for Windows in the May 2023 Patch 3 and earlier, February 2023 Patch 7 and earlier, November 2022 Patch 10 and earlier, and August 2022 Patch 12 and earlier releases. The flaw, tracked under CWE-444, permits an attacker to craft raw HTTP requests that tunnel through the frontend and are executed by the backend repository application server.

A remote attacker with low privileges can exploit the issue over the network without user interaction to elevate privileges, achieving high impact on confidentiality and integrity with changed scope. The vulnerability carries a CVSS 3.1 base score of 9.6.

Qlik has published critical security fixes addressing the issue and states that the vulnerability is resolved in the August 2023 IR, May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, and August 2022 Patch 13 releases; the associated advisories and release notes are available on the Qlik Community site. The CVE is also listed in CISA’s Known Exploited Vulnerabilities catalog.

The EPSS score has reached a peak of 0.9252 with a current value of 0.9241, indicating sustained exploitation interest after disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An HTTP Request Tunneling vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier, February 2023 Patch 7 and earlier, November 2022 Patch 10 and earlier, and August 2022 Patch 12 and earlier allows…

more

a remote attacker to elevate their privilege by tunneling HTTP requests in the raw HTTP request. This allows them to send requests that get executed by the backend server hosting the repository application. This is fixed in August 2023 IR, May 2023 Patch 4, February 2023 Patch 8, November 2022 Patch 11, and August 2022 Patch 13.

CWE(s)
KEV Date Added
07 December 2023

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
T1011 Exfiltration Over Other Network Medium Exfiltration
Adversaries may attempt to exfiltrate data over a different network medium than the command and control channel.
T1016.002 Wi-Fi Discovery Discovery
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
T1021.002 SMB/Windows Admin Shares Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-48365Same product: Qlik Qlik Senseboth on KEV
CVE-2023-41266Same product: Qlik Qlik Senseboth on KEV
CVE-2025-61138Same product: Qlik Qlik Sense
CVE-2022-22536Shared CWE-444both on KEV
CVE-2026-48710Shared CWE-444both on KEV
CVE-2026-73257Shared CWE-444
CVE-2024-23316Shared CWE-444
CVE-2025-65114Shared CWE-444
CVE-2026-100666Shared CWE-444
CVE-2023-47627Shared CWE-444

Affected Assets

qlik
qlik sense
august_2022, february_2023, may_2023, november_2022

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

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Detect
Catch it (NIST detect / respond)

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Harden
Shrink the surface (DISA STIG)

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Validate
Prove the fix (OWASP ASVS)
  • V4.1.3
  • V4.2.4
  • V1.5.3
  • V4.1.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

DE.CM-01 partial match
blocks

Network monitoring can detect smuggling attempts via anomalous HTTP traffic or logs, while eliminating the inconsistency directly aids detection of such events.

PR.IR-01 partial match
blocks

Network protections can enforce consistent HTTP proxy/firewall behavior to block smuggling, and removing the weakness helps prevent unauthorized access via request smuggling.

PR.PS-01 partial match
blocks

Configuration management can enforce uniform HTTP parsing rules across intermediaries, directly mitigating inconsistent interpretation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

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References