Vulnerability · CVE-2025-62848
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions.
Published Dec 16, 2025 · catalog updated Mar 18, 2026 · QNAP Systems Inc. QuTS hero
Last checked Oct 30, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-62848. EPSS is 0.86%. Act only if a listed version of QNAP Systems Inc. QuTS hero is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
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- Severity
- High8.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.86%
- Remediation
- Version ranges on file
- Affected products
- vendor QNAP Systems Inc. QuTS hero h5.3.x <h5.3.1.3292 build 20251024
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024 and later
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor QNAP Systems Inc. QuTS hero h5.3.x <h5.3.1.3292 build 20251024h5.3.x <h5.3.1.3292 build 20251024
How to fix CVE-2025-62848
Upgrade
CVE-2025-62848 lists a fix boundary at h5.3.1.3292. Compare the installed build with that boundary before you change production.
Version check
Seen in h5.3.x <h5.3.1.3292 build 20251024
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-62848. EPSS is 0.86%. Act only if a listed version of QNAP Systems Inc. QuTS hero is installed.
Which versions are affected?
Compare what you have installed with QNAP Systems Inc. QuTS hero h5.3.x <h5.3.1.3292 build 20251024 h5.3.x <h5.3.1.3292 build 20251024. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.86%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Dec 16, 2025 · EUVD
Detected
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024
Mar 18, 2026 · EUVD
Updated
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.7.3297 build 20251024 and later QuTS hero h5.2.7.3297 build 20251024 and later QuTS hero h5.3.1.3292 build 20251024
Sources
- CVE.orgVulnerability recordCVE-2025-62848
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-62848
30-day exploitation probability 0.86%
first.org - EUVDVulnerability recordEUVD-2025-203491
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 30, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgOct 30, 2026
- FIRST EPSSOct 30, 2026
- EUVDOct 30, 2026