Security readout for executives and security teams
Plain-English summary
CVE-2021-44057 affects QNAP Photo Station on QNAP devices. The flaw is improper authentication, meaning a logged-in attacker with low privileges could bypass expected security controls and compromise system security. QNAP states the issue is fixed in specific Photo Station releases from February 2022.
Executive priority
Treat this as a high-priority patching item for QNAP NAS environments using Photo Station. It is not confirmed exploited in the supplied sources, but the flaw can affect confidentiality and system security with low attack complexity.
Technical view
The CVE is CWE-287 improper authentication in QNAP Photo Station. CVSS 3.1 is 7.1: network attack vector, low complexity, low privileges required, no user interaction, high confidentiality impact, and low integrity impact. The source bundle does not identify affected version ranges beyond vulnerable Photo Station branches fixed by QNAP.
Likely exposure
Exposure is likely limited to QNAP devices running Photo Station below the fixed versions: 6.0.20, 5.7.16, or 5.4.13. Risk is higher where Photo Station is reachable over a network by low-privileged users.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation is network-accessible, low complexity, and requires low privileges, but no public exploit status is established in the bundle.
Researcher notes
Key evidence is limited to the CVE record and QNAP advisory. The affected versions are not precisely enumerated; the safest validation path is installed-version comparison against the fixed Photo Station branches named by QNAP.
Mitigation direction
- Update Photo Station to the fixed version for the installed branch.
- Use QNAP advisory QSA-22-15 for branch-specific remediation guidance.
- Inventory QNAP devices running Photo Station and verify package versions.
- Limit Photo Station exposure until affected systems are updated.
- Retire or isolate systems that cannot receive the fixed Photo Station release.
Validation and detection
- Confirm Photo Station is 6.0.20, 5.7.16, 5.4.13, or later as applicable.
- Compare installed QNAP package versions against advisory QSA-22-15.
- Identify whether Photo Station is reachable by network users.
- Review QNAP access logs for unusual low-privileged account activity.
- Document unsupported or unpatched QNAP devices as residual risk.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-44057 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qnap.com/en/security-advisory/qsa-22-15CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.